diff --git a/Packages/vChewing_LangModelAssembly/Sources/LangModelAssembly/LMInstantiator.swift b/Packages/vChewing_LangModelAssembly/Sources/LangModelAssembly/LMInstantiator.swift
index 62b955a9..a50921d5 100644
--- a/Packages/vChewing_LangModelAssembly/Sources/LangModelAssembly/LMInstantiator.swift
+++ b/Packages/vChewing_LangModelAssembly/Sources/LangModelAssembly/LMInstantiator.swift
@@ -92,45 +92,51 @@ extension vChewingLM {
 
     // MARK: - 工具函式
 
+    public func resetFactoryPlistModels() {
+      lmCore.clear()
+      lmMisc.clear()
+      Self.lmCNS.clear()
+      Self.lmSymbols.clear()
+    }
+
     public var isCoreLMLoaded: Bool { lmCore.isLoaded }
-    public func loadLanguageModel(path: String) {
-      if FileManager.default.isReadableFile(atPath: path) {
-        lmCore.open(path)
-        vCLog("lmCore: \(lmCore.count) entries of data loaded from: \(path)")
-      } else {
-        vCLog("lmCore: File access failure: \(path)")
+    public func loadLanguageModel(plist: (dict: [String: [Data]]?, path: String)) {
+      guard let plistDict = plist.dict else {
+        vCLog("lmCore: File access failure: \(plist.path)")
+        return
       }
+      lmCore.load((dict: plistDict, path: plist.path))
+      vCLog("lmCore: \(lmCore.count) entries of data loaded from: \(plist.path)")
     }
 
     public var isCNSDataLoaded: Bool { Self.lmCNS.isLoaded }
-    public func loadCNSData(path: String) {
-      if FileManager.default.isReadableFile(atPath: path) {
-        Self.lmCNS.open(path)
-        vCLog("lmCNS: \(Self.lmCNS.count) entries of data loaded from: \(path)")
-      } else {
-        vCLog("lmCNS: File access failure: \(path)")
+    public func loadCNSData(plist: (dict: [String: [Data]]?, path: String)) {
+      guard let plistDict = plist.dict else {
+        vCLog("lmCNS: File access failure: \(plist.path)")
+        return
       }
+      Self.lmCNS.load((dict: plistDict, path: plist.path))
+      vCLog("lmCNS: \(Self.lmCNS.count) entries of data loaded from: \(plist.path)")
     }
 
     public var isMiscDataLoaded: Bool { lmMisc.isLoaded }
-    public func loadMiscData(path: String) {
-      if FileManager.default.isReadableFile(atPath: path) {
-        lmMisc.open(path)
-        vCLog("lmMisc: \(lmMisc.count) entries of data loaded from: \(path)")
-      } else {
-        vCLog("lmMisc: File access failure: \(path)")
+    public func loadMiscData(plist: (dict: [String: [Data]]?, path: String)) {
+      guard let plistDict = plist.dict else {
+        vCLog("lmCore: File access failure: \(plist.path)")
+        return
       }
+      lmMisc.load((dict: plistDict, path: plist.path))
+      vCLog("lmMisc: \(lmMisc.count) entries of data loaded from: \(plist.path)")
     }
 
     public var isSymbolDataLoaded: Bool { Self.lmSymbols.isLoaded }
-    public func loadSymbolData(path: String) {
-      if FileManager.default.isReadableFile(atPath: path) {
-        Self.lmSymbols.open(path)
-        vCLog(
-          "lmSymbol: \(Self.lmSymbols.count) entries of data loaded from: \(path)")
-      } else {
-        vCLog("lmSymbols: File access failure: \(path)")
+    public func loadSymbolData(plist: (dict: [String: [Data]]?, path: String)) {
+      guard let plistDict = plist.dict else {
+        vCLog("lmCore: File access failure: \(plist.path)")
+        return
       }
+      Self.lmSymbols.load((dict: plistDict, path: plist.path))
+      vCLog("lmSymbols: \(Self.lmSymbols.count) entries of data loaded from: \(plist.path)")
     }
 
     // 上述幾個函式不要加 Async，因為這些內容都被 LMMgr 負責用別的方法 Async 了、用 GCD 的多任務並行共結來完成。
diff --git a/Packages/vChewing_LangModelAssembly/Sources/LangModelAssembly/SubLMs/lmCoreNS.swift b/Packages/vChewing_LangModelAssembly/Sources/LangModelAssembly/SubLMs/lmCoreNS.swift
index 22ca20d3..1509c977 100644
--- a/Packages/vChewing_LangModelAssembly/Sources/LangModelAssembly/SubLMs/lmCoreNS.swift
+++ b/Packages/vChewing_LangModelAssembly/Sources/LangModelAssembly/SubLMs/lmCoreNS.swift
@@ -55,6 +55,15 @@ extension vChewingLM {
     /// 檢測資料庫辭典內是否已經有載入的資料。
     public var isLoaded: Bool { !dataMap.isEmpty }
 
+    /// 讀入資料辭典。
+    /// - parameters:
+    ///   - dictData: 辭典資料及對應的 URL 位置。
+    public mutating func load(_ dictData: (dict: [String: [Data]], path: String)) {
+      if isLoaded { return }
+      filePath = dictData.path
+      dataMap = dictData.dict
+    }
+
     /// 將資料從檔案讀入至資料庫辭典內。
     /// - parameters:
     ///   - path: 給定路徑。
diff --git a/Packages/vChewing_LangModelAssembly/Sources/LangModelAssembly/SubLMs/lmRevLookup.swift b/Packages/vChewing_LangModelAssembly/Sources/LangModelAssembly/SubLMs/lmRevLookup.swift
index 86642375..346c4bf1 100644
--- a/Packages/vChewing_LangModelAssembly/Sources/LangModelAssembly/SubLMs/lmRevLookup.swift
+++ b/Packages/vChewing_LangModelAssembly/Sources/LangModelAssembly/SubLMs/lmRevLookup.swift
@@ -14,8 +14,13 @@ extension vChewingLM {
     public private(set) var dataMap: [String: [Data]] = [:]
     public private(set) var filePath: String = ""
 
-    public init(dataMap: [String: [Data]]) {
-      self.dataMap = dataMap
+    public init(data dictData: (dict: [String: [Data]]?, path: String)) {
+      guard let theDict = dictData.dict else {
+        vCLog("↑ Exception happened when reading plist file at: \(dictData.path).")
+        return
+      }
+      filePath = dictData.path
+      dataMap = theDict
     }
 
     public init(path: String) {
diff --git a/Source/Modules/LMMgr.swift b/Source/Modules/LMMgr.swift
index dc83e4ea..a126e03d 100644
--- a/Source/Modules/LMMgr.swift
+++ b/Source/Modules/LMMgr.swift
@@ -66,8 +66,7 @@ public class LMMgr {
   public static func loadCoreLanguageModelFile(
     filenameSansExtension: String, langModel lm: inout vChewingLM.LMInstantiator
   ) {
-    let dataPath: String = Self.getBundleDataPath(filenameSansExtension)
-    lm.loadLanguageModel(path: dataPath)
+    lm.loadLanguageModel(plist: Self.getDictionaryData(filenameSansExtension))
   }
 
   public static func loadDataModelsOnAppDelegate() {
@@ -77,22 +76,22 @@ public class LMMgr {
     group.enter()
     globalQueue.async {
       if !Self.lmCHT.isCNSDataLoaded {
-        Self.lmCHT.loadCNSData(path: getBundleDataPath("data-cns"))
+        Self.lmCHT.loadCNSData(plist: Self.getDictionaryData("data-cns"))
       }
       if !Self.lmCHT.isMiscDataLoaded {
-        Self.lmCHT.loadMiscData(path: getBundleDataPath("data-zhuyinwen"))
+        Self.lmCHT.loadMiscData(plist: Self.getDictionaryData("data-zhuyinwen"))
       }
       if !Self.lmCHT.isSymbolDataLoaded {
-        Self.lmCHT.loadSymbolData(path: getBundleDataPath("data-symbols"))
+        Self.lmCHT.loadSymbolData(plist: Self.getDictionaryData("data-symbols"))
       }
       if !Self.lmCHS.isCNSDataLoaded {
-        Self.lmCHS.loadCNSData(path: getBundleDataPath("data-cns"))
+        Self.lmCHS.loadCNSData(plist: Self.getDictionaryData("data-cns"))
       }
       if !Self.lmCHS.isMiscDataLoaded {
-        Self.lmCHS.loadMiscData(path: getBundleDataPath("data-zhuyinwen"))
+        Self.lmCHS.loadMiscData(plist: Self.getDictionaryData("data-zhuyinwen"))
       }
       if !Self.lmCHS.isSymbolDataLoaded {
-        Self.lmCHS.loadSymbolData(path: getBundleDataPath("data-symbols"))
+        Self.lmCHS.loadSymbolData(plist: Self.getDictionaryData("data-symbols"))
       }
       group.leave()
     }
@@ -136,23 +135,23 @@ public class LMMgr {
       switch mode {
         case .imeModeCHS:
           if !Self.lmCHS.isCNSDataLoaded {
-            Self.lmCHS.loadCNSData(path: getBundleDataPath("data-cns"))
+            Self.lmCHS.loadCNSData(plist: Self.getDictionaryData("data-cns"))
           }
           if !Self.lmCHS.isMiscDataLoaded {
-            Self.lmCHS.loadMiscData(path: getBundleDataPath("data-zhuyinwen"))
+            Self.lmCHS.loadMiscData(plist: Self.getDictionaryData("data-zhuyinwen"))
           }
           if !Self.lmCHS.isSymbolDataLoaded {
-            Self.lmCHS.loadSymbolData(path: getBundleDataPath("data-symbols"))
+            Self.lmCHS.loadSymbolData(plist: Self.getDictionaryData("data-symbols"))
           }
         case .imeModeCHT:
           if !Self.lmCHT.isCNSDataLoaded {
-            Self.lmCHT.loadCNSData(path: getBundleDataPath("data-cns"))
+            Self.lmCHT.loadCNSData(plist: Self.getDictionaryData("data-cns"))
           }
           if !Self.lmCHT.isMiscDataLoaded {
-            Self.lmCHT.loadMiscData(path: getBundleDataPath("data-zhuyinwen"))
+            Self.lmCHT.loadMiscData(plist: Self.getDictionaryData("data-zhuyinwen"))
           }
           if !Self.lmCHT.isSymbolDataLoaded {
-            Self.lmCHT.loadSymbolData(path: getBundleDataPath("data-symbols"))
+            Self.lmCHT.loadSymbolData(plist: Self.getDictionaryData("data-symbols"))
           }
         default: break
       }
@@ -194,6 +193,17 @@ public class LMMgr {
     }
   }
 
+  public static func reloadFactoryDictionaryPlists() {
+    FrmRevLookupWindow.reloadData()
+    LMMgr.lmCHS.resetFactoryPlistModels()
+    LMMgr.lmCHT.resetFactoryPlistModels()
+    if PrefMgr.shared.onlyLoadFactoryLangModelsIfNeeded {
+      LMMgr.loadDataModel(IMEApp.currentInputMode)
+    } else {
+      LMMgr.loadDataModelsOnAppDelegate()
+    }
+  }
+
   /// 載入磁帶資料。
   /// - Remark: cassettePath() 會在輸入法停用磁帶時直接返回
   public static func loadCassetteData() {
diff --git a/Source/Modules/WindowControllers/CtlRevLookupWindow.swift b/Source/Modules/WindowControllers/CtlRevLookupWindow.swift
index 11ddccfa..8f3caeb9 100644
--- a/Source/Modules/WindowControllers/CtlRevLookupWindow.swift
+++ b/Source/Modules/WindowControllers/CtlRevLookupWindow.swift
@@ -29,15 +29,15 @@ class CtlRevLookupWindow: NSWindowController, NSWindowDelegate {
 class FrmRevLookupWindow: NSWindow {
   typealias LMRevLookup = vChewingLM.LMRevLookup
 
-  static let lmRevLookupCore = LMRevLookup(path: LMMgr.getBundleDataPath("data-bpmf-reverse-lookup"))
+  static var lmRevLookupCore = LMRevLookup(data: LMMgr.getDictionaryData("data-bpmf-reverse-lookup"))
 
   // 全字庫資料接近十萬筆索引，只放到單個 Dictionary 內的話、每次查詢時都會把輸入法搞崩潰。只能分卷處理。
-  static let lmRevLookupCNS1 = LMRevLookup(path: LMMgr.getBundleDataPath("data-bpmf-reverse-lookup-CNS1"))
-  static let lmRevLookupCNS2 = LMRevLookup(path: LMMgr.getBundleDataPath("data-bpmf-reverse-lookup-CNS2"))
-  static let lmRevLookupCNS3 = LMRevLookup(path: LMMgr.getBundleDataPath("data-bpmf-reverse-lookup-CNS3"))
-  static let lmRevLookupCNS4 = LMRevLookup(path: LMMgr.getBundleDataPath("data-bpmf-reverse-lookup-CNS4"))
-  static let lmRevLookupCNS5 = LMRevLookup(path: LMMgr.getBundleDataPath("data-bpmf-reverse-lookup-CNS5"))
-  static let lmRevLookupCNS6 = LMRevLookup(path: LMMgr.getBundleDataPath("data-bpmf-reverse-lookup-CNS6"))
+  static var lmRevLookupCNS1 = LMRevLookup(data: LMMgr.getDictionaryData("data-bpmf-reverse-lookup-CNS1"))
+  static var lmRevLookupCNS2 = LMRevLookup(data: LMMgr.getDictionaryData("data-bpmf-reverse-lookup-CNS2"))
+  static var lmRevLookupCNS3 = LMRevLookup(data: LMMgr.getDictionaryData("data-bpmf-reverse-lookup-CNS3"))
+  static var lmRevLookupCNS4 = LMRevLookup(data: LMMgr.getDictionaryData("data-bpmf-reverse-lookup-CNS4"))
+  static var lmRevLookupCNS5 = LMRevLookup(data: LMMgr.getDictionaryData("data-bpmf-reverse-lookup-CNS5"))
+  static var lmRevLookupCNS6 = LMRevLookup(data: LMMgr.getDictionaryData("data-bpmf-reverse-lookup-CNS6"))
 
   public lazy var inputField = NSTextField()
   public lazy var resultView = NSTextView()
@@ -46,6 +46,16 @@ class FrmRevLookupWindow: NSWindow {
   private lazy var button = NSButton()
   private lazy var view = NSView()
 
+  static func reloadData() {
+    DispatchQueue.main.async { lmRevLookupCore = .init(data: LMMgr.getDictionaryData("data-bpmf-reverse-lookup")) }
+    DispatchQueue.main.async { lmRevLookupCNS1 = .init(data: LMMgr.getDictionaryData("data-bpmf-reverse-lookup-CNS1")) }
+    DispatchQueue.main.async { lmRevLookupCNS2 = .init(data: LMMgr.getDictionaryData("data-bpmf-reverse-lookup-CNS2")) }
+    DispatchQueue.main.async { lmRevLookupCNS3 = .init(data: LMMgr.getDictionaryData("data-bpmf-reverse-lookup-CNS3")) }
+    DispatchQueue.main.async { lmRevLookupCNS4 = .init(data: LMMgr.getDictionaryData("data-bpmf-reverse-lookup-CNS4")) }
+    DispatchQueue.main.async { lmRevLookupCNS5 = .init(data: LMMgr.getDictionaryData("data-bpmf-reverse-lookup-CNS5")) }
+    DispatchQueue.main.async { lmRevLookupCNS6 = .init(data: LMMgr.getDictionaryData("data-bpmf-reverse-lookup-CNS6")) }
+  }
+
   init() {
     super.init(
       contentRect: CGRect(x: 196, y: 240, width: 480, height: 340),