diff --git a/Source/WindowNIBs/Base.lproj/frmPrefWindow.xib b/Source/WindowNIBs/Base.lproj/frmPrefWindow.xib
index 4f4f0d53..028e2952 100644
--- a/Source/WindowNIBs/Base.lproj/frmPrefWindow.xib
+++ b/Source/WindowNIBs/Base.lproj/frmPrefWindow.xib
@@ -66,7 +66,7 @@
                         <stackView distribution="fill" orientation="vertical" alignment="leading" spacing="3" horizontalStackHuggingPriority="249.99998474121094" verticalStackHuggingPriority="249.99998474121094" translatesAutoresizingMaskIntoConstraints="NO" id="dj4-9G-dKq">
                             <rect key="frame" x="0.0" y="312" width="302" height="40"/>
                             <subviews>
-                                <textField focusRingType="none" horizontalHuggingPriority="251" verticalHuggingPriority="750" verticalCompressionResistancePriority="751" translatesAutoresizingMaskIntoConstraints="NO" id="5Rz-c8-hp9">
+                                <textField horizontalHuggingPriority="251" verticalHuggingPriority="750" verticalCompressionResistancePriority="751" translatesAutoresizingMaskIntoConstraints="NO" id="5Rz-c8-hp9">
                                     <rect key="frame" x="-2" y="25" width="306" height="15"/>
                                     <textFieldCell key="cell" controlSize="small" lineBreakMode="clipping" title="Change user interface language (will reboot the IME)." id="ZEv-Q2-mYL">
                                         <font key="font" metaFont="cellTitle"/>
@@ -77,7 +77,7 @@
                                 <stackView distribution="fill" orientation="horizontal" alignment="centerY" horizontalStackHuggingPriority="249.99998474121094" verticalStackHuggingPriority="249.99998474121094" translatesAutoresizingMaskIntoConstraints="NO" id="6NA-4k-NEM">
                                     <rect key="frame" x="0.0" y="0.0" width="302" height="22"/>
                                     <subviews>
-                                        <textField focusRingType="none" verticalHuggingPriority="750" translatesAutoresizingMaskIntoConstraints="NO" id="L5M-VG-W1X">
+                                        <textField verticalHuggingPriority="750" translatesAutoresizingMaskIntoConstraints="NO" id="L5M-VG-W1X">
                                             <rect key="frame" x="-2" y="4" width="118" height="15"/>
                                             <textFieldCell key="cell" controlSize="small" scrollable="YES" lineBreakMode="clipping" sendsActionOnEndEditing="YES" alignment="left" title="UI language setting:" id="9DS-Rc-TXq">
                                                 <font key="font" metaFont="cellTitle"/>
@@ -136,7 +136,7 @@
                                 <constraint firstAttribute="width" relation="greaterThanOrEqual" constant="530" id="Ylc-XO-ZMh"/>
                             </constraints>
                         </box>
-                        <textField focusRingType="none" horizontalHuggingPriority="251" verticalHuggingPriority="750" translatesAutoresizingMaskIntoConstraints="NO" id="Vp3-lc-XD5">
+                        <textField horizontalHuggingPriority="251" verticalHuggingPriority="750" translatesAutoresizingMaskIntoConstraints="NO" id="Vp3-lc-XD5">
                             <rect key="frame" x="-2" y="285" width="105" height="16"/>
                             <constraints>
                                 <constraint firstAttribute="height" constant="16" id="3d9-qL-M1k"/>
@@ -238,7 +238,7 @@
                                 <constraint firstAttribute="width" relation="greaterThanOrEqual" constant="530" id="LDD-dR-33O"/>
                             </constraints>
                         </box>
-                        <textField focusRingType="none" horizontalHuggingPriority="251" verticalHuggingPriority="750" translatesAutoresizingMaskIntoConstraints="NO" id="da1-7e-els">
+                        <textField horizontalHuggingPriority="251" verticalHuggingPriority="750" translatesAutoresizingMaskIntoConstraints="NO" id="da1-7e-els">
                             <rect key="frame" x="-2" y="153" width="101" height="16"/>
                             <constraints>
                                 <constraint firstAttribute="height" constant="16" id="GBB-5k-Dex"/>
@@ -452,7 +452,7 @@
                         <stackView distribution="fill" orientation="vertical" alignment="leading" spacing="5" horizontalStackHuggingPriority="249.99998474121094" verticalStackHuggingPriority="249.99998474121094" translatesAutoresizingMaskIntoConstraints="NO" id="zUw-eX-tDv">
                             <rect key="frame" x="0.0" y="293" width="375" height="42"/>
                             <subviews>
-                                <textField focusRingType="none" horizontalHuggingPriority="251" verticalHuggingPriority="750" verticalCompressionResistancePriority="751" translatesAutoresizingMaskIntoConstraints="NO" id="Ldp-U1-36g">
+                                <textField horizontalHuggingPriority="251" verticalHuggingPriority="750" verticalCompressionResistancePriority="751" translatesAutoresizingMaskIntoConstraints="NO" id="Ldp-U1-36g">
                                     <rect key="frame" x="-2" y="27" width="379" height="15"/>
                                     <textFieldCell key="cell" controlSize="small" lineBreakMode="clipping" title="Change UI font size of candidate window for a better visual clarity." id="iRg-wx-Nx2">
                                         <font key="font" metaFont="cellTitle"/>
@@ -463,7 +463,7 @@
                                 <stackView distribution="fill" orientation="horizontal" alignment="centerY" horizontalStackHuggingPriority="249.99998474121094" verticalStackHuggingPriority="249.99998474121094" translatesAutoresizingMaskIntoConstraints="NO" id="eqk-m1-Lcr">
                                     <rect key="frame" x="0.0" y="0.0" width="207" height="22"/>
                                     <subviews>
-                                        <textField focusRingType="none" verticalHuggingPriority="750" translatesAutoresizingMaskIntoConstraints="NO" id="28">
+                                        <textField verticalHuggingPriority="750" translatesAutoresizingMaskIntoConstraints="NO" id="28">
                                             <rect key="frame" x="-2" y="4" width="133" height="15"/>
                                             <textFieldCell key="cell" controlSize="small" scrollable="YES" lineBreakMode="clipping" sendsActionOnEndEditing="YES" alignment="left" title="Candidate UI font size:" id="29">
                                                 <font key="font" metaFont="cellTitle"/>
@@ -531,7 +531,7 @@
                         <stackView distribution="fill" orientation="vertical" alignment="leading" spacing="5" horizontalStackHuggingPriority="249.99998474121094" verticalStackHuggingPriority="249.99998474121094" translatesAutoresizingMaskIntoConstraints="NO" id="9L9-ua-Bhv">
                             <rect key="frame" x="0.0" y="238" width="516" height="42"/>
                             <subviews>
-                                <textField focusRingType="none" horizontalHuggingPriority="251" verticalHuggingPriority="749" translatesAutoresizingMaskIntoConstraints="NO" id="Yl4-Ar-L6r">
+                                <textField horizontalHuggingPriority="251" verticalHuggingPriority="749" translatesAutoresizingMaskIntoConstraints="NO" id="Yl4-Ar-L6r">
                                     <rect key="frame" x="-2" y="27" width="314" height="15"/>
                                     <constraints>
                                         <constraint firstAttribute="height" constant="15" id="Bgf-Qu-fAR"/>
@@ -545,7 +545,7 @@
                                 <stackView distribution="fill" orientation="horizontal" alignment="centerY" spacing="10" horizontalStackHuggingPriority="249.99998474121094" verticalStackHuggingPriority="249.99998474121094" translatesAutoresizingMaskIntoConstraints="NO" id="kf7-8I-Wwc">
                                     <rect key="frame" x="0.0" y="0.0" width="516" height="22"/>
                                     <subviews>
-                                        <textField focusRingType="none" verticalHuggingPriority="750" translatesAutoresizingMaskIntoConstraints="NO" id="23">
+                                        <textField verticalHuggingPriority="750" translatesAutoresizingMaskIntoConstraints="NO" id="23">
                                             <rect key="frame" x="-2" y="4" width="131" height="15"/>
                                             <textFieldCell key="cell" controlSize="small" scrollable="YES" lineBreakMode="clipping" sendsActionOnEndEditing="YES" alignment="left" title="Candidate List Layout:" id="24">
                                                 <font key="font" metaFont="cellTitle"/>
@@ -637,7 +637,7 @@
                         <stackView distribution="fill" orientation="vertical" alignment="leading" spacing="5" horizontalStackHuggingPriority="249.99998474121094" verticalStackHuggingPriority="249.99998474121094" translatesAutoresizingMaskIntoConstraints="NO" id="Y6y-r1-U6p">
                             <rect key="frame" x="0.0" y="183" width="313" height="42"/>
                             <subviews>
-                                <textField autoresizesSubviews="NO" focusRingType="none" verticalHuggingPriority="750" translatesAutoresizingMaskIntoConstraints="NO" id="IpX-f7-rTL">
+                                <textField autoresizesSubviews="NO" verticalHuggingPriority="750" translatesAutoresizingMaskIntoConstraints="NO" id="IpX-f7-rTL">
                                     <rect key="frame" x="-2" y="27" width="317" height="15"/>
                                     <textFieldCell key="cell" controlSize="small" lineBreakMode="clipping" title="Choose which keys you prefer for selecting candidates." id="2pS-nv-te4">
                                         <font key="font" metaFont="cellTitle"/>
@@ -648,7 +648,7 @@
                                 <stackView distribution="fill" orientation="horizontal" alignment="centerY" horizontalStackHuggingPriority="249.99998474121094" verticalStackHuggingPriority="249.99998474121094" translatesAutoresizingMaskIntoConstraints="NO" id="edH-cW-wQI">
                                     <rect key="frame" x="0.0" y="0.0" width="289" height="22"/>
                                     <subviews>
-                                        <textField focusRingType="none" verticalHuggingPriority="750" translatesAutoresizingMaskIntoConstraints="NO" id="ETa-09-qWI">
+                                        <textField verticalHuggingPriority="750" translatesAutoresizingMaskIntoConstraints="NO" id="ETa-09-qWI">
                                             <rect key="frame" x="-2" y="4" width="91" height="15"/>
                                             <textFieldCell key="cell" lineBreakMode="clipping" alignment="left" title="Selection Keys:" id="FnD-oH-El5">
                                                 <font key="font" metaFont="cellTitle"/>
@@ -656,7 +656,7 @@
                                                 <color key="backgroundColor" name="textBackgroundColor" catalog="System" colorSpace="catalog"/>
                                             </textFieldCell>
                                         </textField>
-                                        <comboBox focusRingType="none" verticalHuggingPriority="750" translatesAutoresizingMaskIntoConstraints="NO" id="uHU-aL-du7">
+                                        <comboBox verticalHuggingPriority="750" translatesAutoresizingMaskIntoConstraints="NO" id="uHU-aL-du7">
                                             <rect key="frame" x="94" y="-2" width="197" height="25"/>
                                             <constraints>
                                                 <constraint firstAttribute="width" constant="194" id="RHZ-qM-gNj"/>
@@ -711,7 +711,7 @@
                         <stackView distribution="fill" orientation="vertical" alignment="leading" horizontalStackHuggingPriority="249.99998474121094" verticalStackHuggingPriority="249.99998474121094" translatesAutoresizingMaskIntoConstraints="NO" id="o0j-33-VXh">
                             <rect key="frame" x="0.0" y="92" width="399" height="78"/>
                             <subviews>
-                                <textField focusRingType="none" verticalHuggingPriority="750" translatesAutoresizingMaskIntoConstraints="NO" id="13">
+                                <textField verticalHuggingPriority="750" translatesAutoresizingMaskIntoConstraints="NO" id="13">
                                     <rect key="frame" x="-2" y="63" width="403" height="15"/>
                                     <textFieldCell key="cell" controlSize="small" scrollable="YES" lineBreakMode="clipping" sendsActionOnEndEditing="YES" alignment="left" title="Choose the cursor position where you want to list possible candidates." id="14">
                                         <font key="font" metaFont="cellTitle"/>
@@ -884,17 +884,17 @@
         </view>
         <customObject id="-3" userLabel="Application" customClass="NSObject"/>
         <view id="XWo-36-xGi" userLabel="vwrBehavior">
-            <rect key="frame" x="0.0" y="0.0" width="577" height="573"/>
+            <rect key="frame" x="0.0" y="0.0" width="577" height="589"/>
             <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMinY="YES"/>
             <subviews>
                 <stackView distribution="fill" orientation="vertical" alignment="leading" spacing="12" horizontalStackHuggingPriority="249.99998474121094" verticalStackHuggingPriority="249.99998474121094" translatesAutoresizingMaskIntoConstraints="NO" id="j9R-fB-ttM">
-                    <rect key="frame" x="20" y="37" width="530" height="516"/>
+                    <rect key="frame" x="20" y="32" width="530" height="537"/>
                     <subviews>
                         <stackView distribution="fill" orientation="vertical" alignment="leading" spacing="5" horizontalStackHuggingPriority="249.99998474121094" verticalStackHuggingPriority="249.99998474121094" translatesAutoresizingMaskIntoConstraints="NO" id="pwZ-0Z-1ID">
-                            <rect key="frame" x="0.0" y="410" width="530" height="106"/>
+                            <rect key="frame" x="0.0" y="410" width="530" height="127"/>
                             <subviews>
                                 <button translatesAutoresizingMaskIntoConstraints="NO" id="109">
-                                    <rect key="frame" x="-1" y="89.5" width="285" height="17"/>
+                                    <rect key="frame" x="-1" y="110.5" width="285" height="17"/>
                                     <buttonCell key="cell" type="check" title="Enable Space key for calling candidate window" bezelStyle="regularSquare" imagePosition="left" alignment="left" controlSize="small" state="on" inset="2" id="110">
                                         <behavior key="behavior" changeContents="YES" doesNotDimImage="YES" lightByContents="YES"/>
                                         <font key="font" metaFont="cellTitle"/>
@@ -907,7 +907,7 @@
                                     </connections>
                                 </button>
                                 <button verticalHuggingPriority="750" translatesAutoresizingMaskIntoConstraints="NO" id="bE0-Lq-Pj7">
-                                    <rect key="frame" x="-1" y="68.5" width="266" height="17"/>
+                                    <rect key="frame" x="-1" y="89.5" width="266" height="17"/>
                                     <buttonCell key="cell" type="check" title="Use ESC key to clear the entire input buffer" bezelStyle="regularSquare" imagePosition="left" controlSize="small" state="on" inset="2" id="f2j-xD-4xK">
                                         <behavior key="behavior" changeContents="YES" doesNotDimImage="YES" lightByContents="YES"/>
                                         <font key="font" metaFont="cellTitle"/>
@@ -920,7 +920,7 @@
                                     </connections>
                                 </button>
                                 <button verticalHuggingPriority="750" translatesAutoresizingMaskIntoConstraints="NO" id="6MM-WC-Mpd">
-                                    <rect key="frame" x="-1" y="47.5" width="381" height="17"/>
+                                    <rect key="frame" x="-1" y="68.5" width="381" height="17"/>
                                     <buttonCell key="cell" type="check" title="Allow using Enter key to confirm associated candidate selection" bezelStyle="regularSquare" imagePosition="left" controlSize="small" inset="2" id="chkAlsoConfirmAssociatedCandidatesByEnter">
                                         <behavior key="behavior" changeContents="YES" doesNotDimImage="YES" lightByContents="YES"/>
                                         <font key="font" metaFont="cellTitle"/>
@@ -932,6 +932,19 @@
                                         <binding destination="32" name="value" keyPath="values.AlsoConfirmAssociatedCandidatesByEnter" id="P1C-j9-N88"/>
                                     </connections>
                                 </button>
+                                <button verticalHuggingPriority="750" translatesAutoresizingMaskIntoConstraints="NO" id="6MK-0e-NrQ">
+                                    <rect key="frame" x="-1" y="47.5" width="344" height="17"/>
+                                    <buttonCell key="cell" type="check" title="Use Space to confirm candidate in Per-Char Select Mode" bezelStyle="regularSquare" imagePosition="left" controlSize="small" inset="2" id="clN-4A-iec">
+                                        <behavior key="behavior" changeContents="YES" doesNotDimImage="YES" lightByContents="YES"/>
+                                        <font key="font" metaFont="cellTitle"/>
+                                    </buttonCell>
+                                    <constraints>
+                                        <constraint firstAttribute="height" constant="16" id="0mM-np-pTV"/>
+                                    </constraints>
+                                    <connections>
+                                        <binding destination="32" name="value" keyPath="values.UseSpaceToCommitHighlightedSCPCCandidate" id="NNu-k7-eSF"/>
+                                    </connections>
+                                </button>
                                 <button verticalHuggingPriority="750" translatesAutoresizingMaskIntoConstraints="NO" id="a6O-JL-C4g">
                                     <rect key="frame" x="-1" y="26.5" width="247" height="17"/>
                                     <buttonCell key="cell" type="check" title="Accept leading intonations in rare cases" bezelStyle="regularSquare" imagePosition="left" controlSize="small" inset="2" id="lblAcceptLeadingIntonations">
@@ -972,6 +985,7 @@
                                 <integer value="1000"/>
                                 <integer value="1000"/>
                                 <integer value="1000"/>
+                                <integer value="1000"/>
                             </visibilityPriorities>
                             <customSpacing>
                                 <real value="3.4028234663852886e+38"/>
@@ -980,12 +994,13 @@
                                 <real value="3.4028234663852886e+38"/>
                                 <real value="3.4028234663852886e+38"/>
                                 <real value="3.4028234663852886e+38"/>
+                                <real value="3.4028234663852886e+38"/>
                             </customSpacing>
                         </stackView>
                         <stackView distribution="fill" orientation="vertical" alignment="leading" horizontalStackHuggingPriority="249.99998474121094" verticalStackHuggingPriority="249.99998474121094" translatesAutoresizingMaskIntoConstraints="NO" id="fO5-4y-X0y">
                             <rect key="frame" x="0.0" y="360" width="365" height="38"/>
                             <subviews>
-                                <textField focusRingType="none" verticalHuggingPriority="750" translatesAutoresizingMaskIntoConstraints="NO" id="TMn-LX-3Ub">
+                                <textField verticalHuggingPriority="750" translatesAutoresizingMaskIntoConstraints="NO" id="TMn-LX-3Ub">
                                     <rect key="frame" x="-2" y="23" width="369" height="15"/>
                                     <textFieldCell key="cell" controlSize="small" scrollable="YES" lineBreakMode="clipping" sendsActionOnEndEditing="YES" alignment="left" title="Choose the behavior of (Shift+)Tab key in the candidate window." id="ueU-Rz-a1C">
                                         <font key="font" metaFont="cellTitle"/>
@@ -1033,7 +1048,7 @@
                         <stackView distribution="fill" orientation="vertical" alignment="leading" horizontalStackHuggingPriority="249.99998474121094" verticalStackHuggingPriority="249.99998474121094" translatesAutoresizingMaskIntoConstraints="NO" id="EOx-os-rU9">
                             <rect key="frame" x="0.0" y="274" width="381" height="74"/>
                             <subviews>
-                                <textField focusRingType="none" verticalHuggingPriority="750" translatesAutoresizingMaskIntoConstraints="NO" id="sjl-L6-qdY">
+                                <textField verticalHuggingPriority="750" translatesAutoresizingMaskIntoConstraints="NO" id="sjl-L6-qdY">
                                     <rect key="frame" x="-2" y="59" width="385" height="15"/>
                                     <textFieldCell key="cell" controlSize="small" scrollable="YES" lineBreakMode="clipping" sendsActionOnEndEditing="YES" alignment="left" title="Specify what intonation key does when syllable composer is empty." id="lblIntonationKeyBehavior">
                                         <font key="font" metaFont="cellTitle"/>
@@ -1083,7 +1098,7 @@
                         <stackView distribution="fill" orientation="vertical" alignment="leading" spacing="7" horizontalStackHuggingPriority="249.99998474121094" verticalStackHuggingPriority="249.99998474121094" translatesAutoresizingMaskIntoConstraints="NO" id="L1h-Ce-g4Z">
                             <rect key="frame" x="0.0" y="153" width="449" height="109"/>
                             <subviews>
-                                <textField focusRingType="none" verticalHuggingPriority="750" translatesAutoresizingMaskIntoConstraints="NO" id="6q5-OP-iEb">
+                                <textField verticalHuggingPriority="750" translatesAutoresizingMaskIntoConstraints="NO" id="6q5-OP-iEb">
                                     <rect key="frame" x="-2" y="94" width="332" height="15"/>
                                     <textFieldCell key="cell" controlSize="small" scrollable="YES" lineBreakMode="clipping" sendsActionOnEndEditing="YES" alignment="left" title="Choose the behavior of Shift+Letter key with letter inputs." id="lblUpperCaseLetterKeyBehavior">
                                         <font key="font" metaFont="cellTitle"/>
@@ -1141,7 +1156,7 @@
                         <stackView distribution="fill" orientation="vertical" alignment="leading" horizontalStackHuggingPriority="249.99998474121094" verticalStackHuggingPriority="249.99998474121094" translatesAutoresizingMaskIntoConstraints="NO" id="NOW-jd-XBh">
                             <rect key="frame" x="0.0" y="85" width="358" height="56"/>
                             <subviews>
-                                <textField focusRingType="none" verticalHuggingPriority="750" translatesAutoresizingMaskIntoConstraints="NO" id="J0f-Aw-dxC">
+                                <textField verticalHuggingPriority="750" translatesAutoresizingMaskIntoConstraints="NO" id="J0f-Aw-dxC">
                                     <rect key="frame" x="-2" y="41" width="336" height="15"/>
                                     <textFieldCell key="cell" controlSize="small" scrollable="YES" lineBreakMode="clipping" sendsActionOnEndEditing="YES" alignment="left" title="Choose the behavior of (Shift+)Space key with candidates." id="Pg5-G9-pY5">
                                         <font key="font" metaFont="cellTitle"/>
@@ -1187,7 +1202,7 @@
                         <stackView distribution="fill" orientation="vertical" alignment="leading" spacing="7" horizontalStackHuggingPriority="249.99998474121094" verticalStackHuggingPriority="249.99998474121094" translatesAutoresizingMaskIntoConstraints="NO" id="s47-wG-vKA">
                             <rect key="frame" x="0.0" y="0.0" width="348" height="73"/>
                             <subviews>
-                                <textField focusRingType="none" verticalHuggingPriority="750" translatesAutoresizingMaskIntoConstraints="NO" id="iCL-n8-VTP">
+                                <textField verticalHuggingPriority="750" translatesAutoresizingMaskIntoConstraints="NO" id="iCL-n8-VTP">
                                     <rect key="frame" x="-2" y="58" width="323" height="15"/>
                                     <textFieldCell key="cell" controlSize="small" scrollable="YES" lineBreakMode="clipping" sendsActionOnEndEditing="YES" alignment="left" title="Choose the attempted behavior of Shift+BackSpace key." id="lblShiftBkspKeyBehavior">
                                         <font key="font" metaFont="cellTitle"/>
@@ -1257,7 +1272,7 @@
                 <constraint firstItem="j9R-fB-ttM" firstAttribute="leading" secondItem="XWo-36-xGi" secondAttribute="leading" constant="20" symbolic="YES" id="4lO-GJ-Cpr"/>
                 <constraint firstItem="j9R-fB-ttM" firstAttribute="top" secondItem="XWo-36-xGi" secondAttribute="top" constant="20" symbolic="YES" id="CuZ-dn-mQZ"/>
             </constraints>
-            <point key="canvasLocation" x="-1351.5" y="607.5"/>
+            <point key="canvasLocation" x="-1351.5" y="615.5"/>
         </view>
         <userDefaultsController representsSharedInstance="YES" id="32"/>
         <view id="Rnp-LM-RIF" userLabel="vwrDictionary">
@@ -1267,7 +1282,7 @@
                 <stackView distribution="fill" orientation="vertical" alignment="leading" horizontalStackHuggingPriority="249.99998474121094" verticalStackHuggingPriority="249.99998474121094" translatesAutoresizingMaskIntoConstraints="NO" id="6xK-1z-A14">
                     <rect key="frame" x="20" y="30" width="530" height="216"/>
                     <subviews>
-                        <textField autoresizesSubviews="NO" focusRingType="none" horizontalHuggingPriority="251" verticalHuggingPriority="750" translatesAutoresizingMaskIntoConstraints="NO" id="FUV-qx-xkC">
+                        <textField autoresizesSubviews="NO" horizontalHuggingPriority="251" verticalHuggingPriority="750" translatesAutoresizingMaskIntoConstraints="NO" id="FUV-qx-xkC">
                             <rect key="frame" x="-2" y="201" width="388" height="15"/>
                             <textFieldCell key="cell" controlSize="small" lineBreakMode="clipping" title="Choose your desired user data folder path. Will be omitted if invalid." id="wN3-k3-b2a">
                                 <font key="font" metaFont="cellTitle"/>
@@ -1278,7 +1293,7 @@
                         <stackView distribution="fill" orientation="horizontal" alignment="bottom" spacing="0.0" horizontalStackHuggingPriority="249.99998474121094" verticalStackHuggingPriority="249.99998474121094" translatesAutoresizingMaskIntoConstraints="NO" id="uUS-Ni-jFP">
                             <rect key="frame" x="0.0" y="171" width="530" height="22"/>
                             <subviews>
-                                <textField focusRingType="none" verticalHuggingPriority="750" horizontalCompressionResistancePriority="250" textCompletion="NO" translatesAutoresizingMaskIntoConstraints="NO" id="s7t-Kk-EPu">
+                                <textField verticalHuggingPriority="750" horizontalCompressionResistancePriority="250" textCompletion="NO" translatesAutoresizingMaskIntoConstraints="NO" id="s7t-Kk-EPu">
                                     <rect key="frame" x="0.0" y="0.0" width="470" height="22"/>
                                     <constraints>
                                         <constraint firstAttribute="height" constant="22" id="4NS-v5-h9y"/>
@@ -1634,7 +1649,7 @@
                                 <autoresizingMask key="autoresizingMask"/>
                             </scroller>
                         </scrollView>
-                        <textField wantsLayer="YES" focusRingType="none" verticalHuggingPriority="750" translatesAutoresizingMaskIntoConstraints="NO" id="cRd-HU-x7y" userLabel="CommentField">
+                        <textField wantsLayer="YES" verticalHuggingPriority="750" translatesAutoresizingMaskIntoConstraints="NO" id="cRd-HU-x7y" userLabel="CommentField">
                             <rect key="frame" x="0.0" y="45" width="538" height="21"/>
                             <textFieldCell key="cell" scrollable="YES" lineBreakMode="clipping" selectable="YES" editable="YES" sendsActionOnEndEditing="YES" borderStyle="bezel" placeholderString="Comment" drawsBackground="YES" usesSingleLineMode="YES" id="8ao-bw-PSo">
                                 <font key="font" usesAppearanceFont="YES"/>
@@ -1645,7 +1660,7 @@
                         <stackView distribution="fill" orientation="horizontal" alignment="bottom" horizontalStackHuggingPriority="249.99998474121094" verticalStackHuggingPriority="249.99998474121094" translatesAutoresizingMaskIntoConstraints="NO" id="hOe-xG-Qde">
                             <rect key="frame" x="0.0" y="19" width="538" height="21"/>
                             <subviews>
-                                <textField wantsLayer="YES" focusRingType="none" verticalHuggingPriority="750" translatesAutoresizingMaskIntoConstraints="NO" id="eGd-pc-aEI" userLabel="Field1">
+                                <textField wantsLayer="YES" verticalHuggingPriority="750" translatesAutoresizingMaskIntoConstraints="NO" id="eGd-pc-aEI" userLabel="Field1">
                                     <rect key="frame" x="0.0" y="0.0" width="139" height="21"/>
                                     <constraints>
                                         <constraint firstAttribute="width" constant="139" id="HcX-BZ-tBS"/>
@@ -1656,7 +1671,7 @@
                                         <color key="backgroundColor" name="textBackgroundColor" catalog="System" colorSpace="catalog"/>
                                     </textFieldCell>
                                 </textField>
-                                <textField wantsLayer="YES" focusRingType="none" verticalHuggingPriority="750" translatesAutoresizingMaskIntoConstraints="NO" id="4hL-rO-jca" userLabel="Field2">
+                                <textField wantsLayer="YES" verticalHuggingPriority="750" translatesAutoresizingMaskIntoConstraints="NO" id="4hL-rO-jca" userLabel="Field2">
                                     <rect key="frame" x="147" y="0.0" width="222" height="21"/>
                                     <constraints>
                                         <constraint firstAttribute="width" constant="222" id="40e-8a-KXa"/>
@@ -1667,7 +1682,7 @@
                                         <color key="backgroundColor" name="textBackgroundColor" catalog="System" colorSpace="catalog"/>
                                     </textFieldCell>
                                 </textField>
-                                <textField wantsLayer="YES" focusRingType="none" verticalHuggingPriority="750" translatesAutoresizingMaskIntoConstraints="NO" id="MtM-ya-r2H" userLabel="Field3">
+                                <textField wantsLayer="YES" verticalHuggingPriority="750" translatesAutoresizingMaskIntoConstraints="NO" id="MtM-ya-r2H" userLabel="Field3">
                                     <rect key="frame" x="377" y="0.0" width="108" height="21"/>
                                     <constraints>
                                         <constraint firstAttribute="width" relation="greaterThanOrEqual" constant="107" id="bDV-wY-WKh"/>
@@ -1752,7 +1767,7 @@ DQ
                 <stackView distribution="fill" orientation="vertical" alignment="leading" horizontalStackHuggingPriority="249.99998474121094" verticalStackHuggingPriority="249.99998474121094" translatesAutoresizingMaskIntoConstraints="NO" id="sgB-kZ-rJg">
                     <rect key="frame" x="20" y="27" width="537" height="361"/>
                     <subviews>
-                        <textField autoresizesSubviews="NO" focusRingType="none" horizontalHuggingPriority="251" verticalHuggingPriority="750" translatesAutoresizingMaskIntoConstraints="NO" id="vgR-3O-aTP">
+                        <textField autoresizesSubviews="NO" horizontalHuggingPriority="251" verticalHuggingPriority="750" translatesAutoresizingMaskIntoConstraints="NO" id="vgR-3O-aTP">
                             <rect key="frame" x="-2" y="346" width="368" height="15"/>
                             <textFieldCell key="cell" controlSize="small" lineBreakMode="clipping" title="Choose your desired cassette file path. Will be omitted if invalid." id="Iai-0X-nxi">
                                 <font key="font" metaFont="cellTitle"/>
@@ -1763,7 +1778,7 @@ DQ
                         <stackView distribution="fill" orientation="horizontal" alignment="bottom" spacing="0.0" horizontalStackHuggingPriority="249.99998474121094" verticalStackHuggingPriority="249.99998474121094" translatesAutoresizingMaskIntoConstraints="NO" id="o4K-Ir-Iwk">
                             <rect key="frame" x="0.0" y="316" width="530" height="22"/>
                             <subviews>
-                                <textField focusRingType="none" verticalHuggingPriority="750" horizontalCompressionResistancePriority="250" textCompletion="NO" translatesAutoresizingMaskIntoConstraints="NO" id="tXb-Gb-689">
+                                <textField verticalHuggingPriority="750" horizontalCompressionResistancePriority="250" textCompletion="NO" translatesAutoresizingMaskIntoConstraints="NO" id="tXb-Gb-689">
                                     <rect key="frame" x="0.0" y="0.0" width="470" height="22"/>
                                     <constraints>
                                         <constraint firstAttribute="height" constant="22" id="2uQ-54-WyF"/>
@@ -1840,7 +1855,7 @@ DQ
                                         <binding destination="32" name="value" keyPath="values.CassetteEnabled" id="zBA-Is-Ejs"/>
                                     </connections>
                                 </button>
-                                <textField wantsLayer="YES" focusRingType="none" verticalHuggingPriority="750" setsMaxLayoutWidthAtFirstLayout="YES" translatesAutoresizingMaskIntoConstraints="NO" id="XN3-ki-c3E" userLabel="lblCassetteModeDescription">
+                                <textField wantsLayer="YES" verticalHuggingPriority="750" setsMaxLayoutWidthAtFirstLayout="YES" translatesAutoresizingMaskIntoConstraints="NO" id="XN3-ki-c3E" userLabel="lblCassetteModeDescription">
                                     <rect key="frame" x="-2" y="75" width="541" height="70"/>
                                     <constraints>
                                         <constraint firstAttribute="width" constant="537" id="6MO-OV-Ykr"/>
@@ -1880,7 +1895,7 @@ DQ
                                         <binding destination="32" name="value" keyPath="values.ShowTranslatedStrokesInCompositionBuffer" id="wZl-Ll-NQE"/>
                                     </connections>
                                 </button>
-                                <textField wantsLayer="YES" focusRingType="none" verticalHuggingPriority="750" setsMaxLayoutWidthAtFirstLayout="YES" translatesAutoresizingMaskIntoConstraints="NO" id="E3c-R8-OEL" userLabel="lblCassetteStrokeTranslation">
+                                <textField wantsLayer="YES" verticalHuggingPriority="750" setsMaxLayoutWidthAtFirstLayout="YES" translatesAutoresizingMaskIntoConstraints="NO" id="E3c-R8-OEL" userLabel="lblCassetteStrokeTranslation">
                                     <rect key="frame" x="-2" y="0.0" width="541" height="28"/>
                                     <constraints>
                                         <constraint firstAttribute="width" constant="537" id="MuV-7s-8wL"/>
@@ -1908,7 +1923,7 @@ DQ
                                 <real value="3.4028234663852886e+38"/>
                             </customSpacing>
                         </stackView>
-                        <textField focusRingType="none" verticalHuggingPriority="750" translatesAutoresizingMaskIntoConstraints="NO" id="yaq-5S-KLW">
+                        <textField verticalHuggingPriority="750" translatesAutoresizingMaskIntoConstraints="NO" id="yaq-5S-KLW">
                             <rect key="frame" x="-2" y="119" width="504" height="15"/>
                             <constraints>
                                 <constraint firstAttribute="width" relation="greaterThanOrEqual" constant="500" id="oHO-0L-j8S"/>
@@ -1955,7 +1970,7 @@ DQ
                                 <binding destination="32" name="selectedTag" keyPath="values.ForceCassetteChineseConversion" id="ZU7-OV-xvR"/>
                             </connections>
                         </matrix>
-                        <textField wantsLayer="YES" focusRingType="none" verticalHuggingPriority="750" setsMaxLayoutWidthAtFirstLayout="YES" translatesAutoresizingMaskIntoConstraints="NO" id="v8K-1M-luy" userLabel="lblCassetteChineseConversionDescription">
+                        <textField wantsLayer="YES" verticalHuggingPriority="750" setsMaxLayoutWidthAtFirstLayout="YES" translatesAutoresizingMaskIntoConstraints="NO" id="v8K-1M-luy" userLabel="lblCassetteChineseConversionDescription">
                             <rect key="frame" x="-2" y="0.0" width="541" height="28"/>
                             <constraints>
                                 <constraint firstAttribute="width" constant="537" id="M6k-9g-blj"/>
@@ -2002,7 +2017,7 @@ DQ
                         <stackView distribution="fill" orientation="vertical" alignment="leading" spacing="5" horizontalStackHuggingPriority="249.99998474121094" verticalStackHuggingPriority="249.99998474121094" translatesAutoresizingMaskIntoConstraints="NO" id="v7J-Jh-97Y">
                             <rect key="frame" x="0.0" y="133" width="530" height="125"/>
                             <subviews>
-                                <textField focusRingType="none" verticalHuggingPriority="750" translatesAutoresizingMaskIntoConstraints="NO" id="onD-QP-KPf">
+                                <textField verticalHuggingPriority="750" translatesAutoresizingMaskIntoConstraints="NO" id="onD-QP-KPf">
                                     <rect key="frame" x="-2" y="110" width="345" height="15"/>
                                     <textFieldCell key="cell" controlSize="small" lineBreakMode="clipping" title="Choose your preferred keyboard layout and phonetic parser." id="RQ6-MS-m4C">
                                         <font key="font" metaFont="cellTitle"/>
@@ -2016,7 +2031,7 @@ DQ
                                         <stackView distribution="fill" orientation="horizontal" alignment="centerY" horizontalStackHuggingPriority="249.99998474121094" verticalStackHuggingPriority="249.99998474121094" translatesAutoresizingMaskIntoConstraints="NO" id="h8t-5m-DFX">
                                             <rect key="frame" x="0.0" y="22" width="430" height="22"/>
                                             <subviews>
-                                                <textField focusRingType="none" horizontalHuggingPriority="1" verticalHuggingPriority="750" translatesAutoresizingMaskIntoConstraints="NO" id="11">
+                                                <textField horizontalHuggingPriority="1" verticalHuggingPriority="750" translatesAutoresizingMaskIntoConstraints="NO" id="11">
                                                     <rect key="frame" x="-2" y="4" width="126" height="15"/>
                                                     <constraints>
                                                         <constraint firstAttribute="width" relation="greaterThanOrEqual" constant="76" id="2hq-Hr-fjU"/>
@@ -2076,7 +2091,7 @@ DQ
                                         <stackView distribution="fill" orientation="horizontal" alignment="centerY" horizontalStackHuggingPriority="249.99998474121094" verticalStackHuggingPriority="249.99998474121094" translatesAutoresizingMaskIntoConstraints="NO" id="CvR-zl-5Xk">
                                             <rect key="frame" x="0.0" y="0.0" width="430" height="22"/>
                                             <subviews>
-                                                <textField focusRingType="none" horizontalHuggingPriority="1" verticalHuggingPriority="750" translatesAutoresizingMaskIntoConstraints="NO" id="125">
+                                                <textField horizontalHuggingPriority="1" verticalHuggingPriority="750" translatesAutoresizingMaskIntoConstraints="NO" id="125">
                                                     <rect key="frame" x="-2" y="4" width="126" height="15"/>
                                                     <constraints>
                                                         <constraint firstAttribute="width" relation="greaterThanOrEqual" constant="76" id="sfr-Qb-PHn"/>
@@ -2125,7 +2140,7 @@ DQ
                                         <real value="3.4028234663852886e+38"/>
                                     </customSpacing>
                                 </stackView>
-                                <textField wantsLayer="YES" focusRingType="none" verticalHuggingPriority="750" horizontalCompressionResistancePriority="250" setsMaxLayoutWidthAtFirstLayout="YES" translatesAutoresizingMaskIntoConstraints="NO" id="hab-1o-1kS">
+                                <textField wantsLayer="YES" verticalHuggingPriority="750" horizontalCompressionResistancePriority="250" setsMaxLayoutWidthAtFirstLayout="YES" translatesAutoresizingMaskIntoConstraints="NO" id="hab-1o-1kS">
                                     <rect key="frame" x="-2" y="0.0" width="534" height="56"/>
                                     <constraints>
                                         <constraint firstAttribute="width" constant="530" id="hAl-ML-Rbc"/>
@@ -2155,7 +2170,7 @@ DQ
                         <stackView distribution="fill" orientation="vertical" alignment="leading" horizontalStackHuggingPriority="249.99998474121094" verticalStackHuggingPriority="249.99998474121094" translatesAutoresizingMaskIntoConstraints="NO" id="gwA-XL-zVB">
                             <rect key="frame" x="0.0" y="0.0" width="396" height="123"/>
                             <subviews>
-                                <textField focusRingType="none" horizontalHuggingPriority="251" verticalHuggingPriority="750" translatesAutoresizingMaskIntoConstraints="NO" id="Md1-t7-hU4">
+                                <textField horizontalHuggingPriority="251" verticalHuggingPriority="750" translatesAutoresizingMaskIntoConstraints="NO" id="Md1-t7-hU4">
                                     <rect key="frame" x="-2" y="108" width="125" height="15"/>
                                     <textFieldCell key="cell" lineBreakMode="clipping" title="Keyboard Shortcuts" id="xibKeyboardShortcuts">
                                         <font key="font" metaFont="systemBold" size="12"/>
@@ -2381,7 +2396,7 @@ DQ
                 <stackView distribution="fill" orientation="vertical" alignment="leading" horizontalStackHuggingPriority="249.99998474121094" verticalStackHuggingPriority="249.99998474121094" translatesAutoresizingMaskIntoConstraints="NO" id="gjM-uG-XkW">
                     <rect key="frame" x="20" y="33" width="537" height="227"/>
                     <subviews>
-                        <textField wantsLayer="YES" focusRingType="none" verticalHuggingPriority="750" setsMaxLayoutWidthAtFirstLayout="YES" translatesAutoresizingMaskIntoConstraints="NO" id="hBd-sS-cWq">
+                        <textField wantsLayer="YES" verticalHuggingPriority="750" setsMaxLayoutWidthAtFirstLayout="YES" translatesAutoresizingMaskIntoConstraints="NO" id="hBd-sS-cWq">
                             <rect key="frame" x="-2" y="199" width="541" height="28"/>
                             <constraints>
                                 <constraint firstAttribute="width" constant="537" id="Kvp-PL-Pes"/>
@@ -2415,7 +2430,7 @@ Features listed here may not work as expected.</string>
                                 <binding destination="32" name="value" keyPath="values.DisableSegmentedThickUnderlineInMarkingModeForManagedClients" id="pPC-Ao-nPv"/>
                             </connections>
                         </button>
-                        <textField wantsLayer="YES" focusRingType="none" verticalHuggingPriority="750" setsMaxLayoutWidthAtFirstLayout="YES" translatesAutoresizingMaskIntoConstraints="NO" id="uK3-cc-UcW">
+                        <textField wantsLayer="YES" verticalHuggingPriority="750" setsMaxLayoutWidthAtFirstLayout="YES" translatesAutoresizingMaskIntoConstraints="NO" id="uK3-cc-UcW">
                             <rect key="frame" x="-2" y="88" width="541" height="70"/>
                             <constraints>
                                 <constraint firstAttribute="width" constant="537" id="qOi-aV-LQX"/>
@@ -2442,7 +2457,7 @@ Features listed here may not work as expected.</string>
                                 <binding destination="32" name="value" keyPath="values.UseIMKCandidateWindow" id="6Hj-pH-Wec"/>
                             </connections>
                         </button>
-                        <textField wantsLayer="YES" focusRingType="none" verticalHuggingPriority="750" setsMaxLayoutWidthAtFirstLayout="YES" translatesAutoresizingMaskIntoConstraints="NO" id="5ae-kj-Llx">
+                        <textField wantsLayer="YES" verticalHuggingPriority="750" setsMaxLayoutWidthAtFirstLayout="YES" translatesAutoresizingMaskIntoConstraints="NO" id="5ae-kj-Llx">
                             <rect key="frame" x="-2" y="0.0" width="541" height="56"/>
                             <constraints>
                                 <constraint firstAttribute="width" constant="537" id="zTP-1s-eev"/>
diff --git a/Source/WindowNIBs/en.lproj/frmPrefWindow.strings b/Source/WindowNIBs/en.lproj/frmPrefWindow.strings
index 565e53e4..52e429dd 100644
--- a/Source/WindowNIBs/en.lproj/frmPrefWindow.strings
+++ b/Source/WindowNIBs/en.lproj/frmPrefWindow.strings
@@ -51,6 +51,7 @@
 "chkKeepReadingUponCompositionError.title" = "Allow backspace-editing miscomposed readings";
 "chkOnlyLoadFactoryLangModelsIfNeeded.title" = "Only load factory language models if needed";
 "chkUseFixecCandidateOrderOnSelection.title" = "Always use fixed listing order in candidate window";
+"clN-4A-iec.title" = "Use Space to confirm highlighted candidate in Per-Char Select Mode";
 "Cp2-hn-bOq.title" = "Disable forced conversion for cassette outputs";
 "DbW-eq-ZdB.title" = "Starlight";
 "dIN-TZ-67g.title" = "Space to +revolve candidates, Shift+Space to +revolve pages";
diff --git a/Source/WindowNIBs/ja.lproj/frmPrefWindow.strings b/Source/WindowNIBs/ja.lproj/frmPrefWindow.strings
index 5526be2a..b805ce5e 100644
--- a/Source/WindowNIBs/ja.lproj/frmPrefWindow.strings
+++ b/Source/WindowNIBs/ja.lproj/frmPrefWindow.strings
@@ -51,6 +51,7 @@
 "chkKeepReadingUponCompositionError.title" = "効かぬ音読みを BackSpace で再編集";
 "chkOnlyLoadFactoryLangModelsIfNeeded.title" = "必要性を判断してから内蔵辞書を読み込む";
 "chkUseFixecCandidateOrderOnSelection.title" = "候補文字を固定順番で陳列する";
+"clN-4A-iec.title" = "全候補入力の場合、ハイライト候補を Space キーで確認";
 "Cp2-hn-bOq.title" = "カセットモードによる漢字出力の簡繁転換を行わずにする";
 "DbW-eq-ZdB.title" = "星光";
 "dIN-TZ-67g.title" = "Shift+Space で次のページ、Space で次の候補文字を";
diff --git a/Source/WindowNIBs/zh-Hans.lproj/frmPrefWindow.strings b/Source/WindowNIBs/zh-Hans.lproj/frmPrefWindow.strings
index 607b126c..8aef2f94 100644
--- a/Source/WindowNIBs/zh-Hans.lproj/frmPrefWindow.strings
+++ b/Source/WindowNIBs/zh-Hans.lproj/frmPrefWindow.strings
@@ -51,6 +51,7 @@
 "chkKeepReadingUponCompositionError.title" = "允许对无效的读音使用 BackSpace 编辑";
 "chkOnlyLoadFactoryLangModelsIfNeeded.title" = "按需载入简繁体模式的原厂辞典资料";
 "chkUseFixecCandidateOrderOnSelection.title" = "以固定顺序来陈列选字窗内的候选字";
+"clN-4A-iec.title" = "在逐字选字模式当中使用空格键确认当前高亮候选字";
 "Cp2-hn-bOq.title" = "对磁带模式禁用繁简转换";
 "DbW-eq-ZdB.title" = "星光";
 "dIN-TZ-67g.title" = "Shift+Space 换下一页，Space 换选下一个候选字。";
diff --git a/Source/WindowNIBs/zh-Hant.lproj/frmPrefWindow.strings b/Source/WindowNIBs/zh-Hant.lproj/frmPrefWindow.strings
index 46563167..db8ab659 100644
--- a/Source/WindowNIBs/zh-Hant.lproj/frmPrefWindow.strings
+++ b/Source/WindowNIBs/zh-Hant.lproj/frmPrefWindow.strings
@@ -51,6 +51,7 @@
 "chkKeepReadingUponCompositionError.title" = "允許對無效的讀音使用 BackSpace 編輯";
 "chkOnlyLoadFactoryLangModelsIfNeeded.title" = "按需載入簡繁體模式的原廠辭典資料";
 "chkUseFixecCandidateOrderOnSelection.title" = "以固定順序來陳列選字窗內的候選字";
+"clN-4A-iec.title" = "在逐字選字模式當中使用空格鍵確認當前高亮候選字";
 "Cp2-hn-bOq.title" = "對磁帶模式禁用繁簡轉換";
 "DbW-eq-ZdB.title" = "星光";
 "dIN-TZ-67g.title" = "Shift+Space 換下一頁，Space 換選下一個候選字";