diff --git a/FastColoredTextBox/FastColoredTextBox.cs b/FastColoredTextBox/FastColoredTextBox.cs
index d7e2a1e9..28914f5b 100644
--- a/FastColoredTextBox/FastColoredTextBox.cs
+++ b/FastColoredTextBox/FastColoredTextBox.cs
@@ -821,7 +821,7 @@ public Style[] Styles
         /// </summary>
         [Description("Here you can change hotkeys for FastColoredTextBox.")]
         [Editor(typeof(HotkeysEditor), typeof(UITypeEditor))]
-        [DefaultValue("Tab=IndentIncrease, Escape=ClearHints, PgUp=GoPageUp, PgDn=GoPageDown, End=GoEnd, Home=GoHome, Left=GoLeft, Up=GoUp, Right=GoRight, Down=GoDown, Ins=ReplaceMode, Del=DeleteCharRight, F3=FindNext, Shift+Tab=IndentDecrease, Shift+PgUp=GoPageUpWithSelection, Shift+PgDn=GoPageDownWithSelection, Shift+End=GoEndWithSelection, Shift+Home=GoHomeWithSelection, Shift+Left=GoLeftWithSelection, Shift+Up=GoUpWithSelection, Shift+Right=GoRightWithSelection, Shift+Down=GoDownWithSelection, Shift+Ins=Paste, Shift+Del=Cut, Ctrl+Back=ClearWordLeft, Ctrl+Space=AutocompleteMenu, Ctrl+End=GoLastLine, Ctrl+Home=GoFirstLine, Ctrl+Left=GoWordLeft, Ctrl+Up=ScrollUp, Ctrl+Right=GoWordRight, Ctrl+Down=ScrollDown, Ctrl+Ins=Copy, Ctrl+Del=ClearWordRight, Ctrl+0=ZoomNormal, Ctrl+A=SelectAll, Ctrl+B=BookmarkLine, Ctrl+C=Copy, Ctrl+E=MacroExecute, Ctrl+F=FindDialog, Ctrl+G=GoToDialog, Ctrl+H=ReplaceDialog, Ctrl+I=AutoIndentChars, Ctrl+M=MacroRecord, Ctrl+N=GoNextBookmark, Ctrl+R=Redo, Ctrl+U=UpperCase, Ctrl+V=Paste, Ctrl+X=Cut, Ctrl+Z=Undo, Ctrl+Add=ZoomIn, Ctrl+Subtract=ZoomOut, Ctrl+OemMinus=NavigateBackward, Ctrl+Shift+End=GoLastLineWithSelection, Ctrl+Shift+Home=GoFirstLineWithSelection, Ctrl+Shift+Left=GoWordLeftWithSelection, Ctrl+Shift+Right=GoWordRightWithSelection, Ctrl+Shift+B=UnbookmarkLine, Ctrl+Shift+C=CommentSelected, Ctrl+Shift+N=GoPrevBookmark, Ctrl+Shift+U=LowerCase, Ctrl+Shift+OemMinus=NavigateForward, Alt+Back=Undo, Alt+Up=MoveSelectedLinesUp, Alt+Down=MoveSelectedLinesDown, Alt+F=FindChar, Alt+Shift+Left=GoLeft_ColumnSelectionMode, Alt+Shift+Up=GoUp_ColumnSelectionMode, Alt+Shift+Right=GoRight_ColumnSelectionMode, Alt+Shift+Down=GoDown_ColumnSelectionMode")]
+        [DefaultValue("Tab=IndentIncrease, Escape=ClearHints, PgUp=GoPageUp, PgDn=GoPageDown, End=GoEnd, Home=GoHome, Left=GoLeft, Up=GoUp, Right=GoRight, Down=GoDown, Ins=ReplaceMode, Del=DeleteCharRight, F3=FindNext, Shift+Tab=IndentDecrease, Shift+PgUp=GoPageUpWithSelection, Shift+PgDn=GoPageDownWithSelection, Shift+End=GoEndWithSelection, Shift+Home=GoHomeWithSelection, Shift+Left=GoLeftWithSelection, Shift+Up=GoUpWithSelection, Shift+Right=GoRightWithSelection, Shift+Down=GoDownWithSelection, Shift+Ins=Paste, Shift+Del=Cut, Ctrl+Back=ClearWordLeft, Ctrl+Space=AutocompleteMenu, Ctrl+End=GoLastLine, Ctrl+Home=GoFirstLine, Ctrl+Left=GoWordLeft, Ctrl+Up=ScrollUp, Ctrl+Right=GoWordRight, Ctrl+Down=ScrollDown, Ctrl+Ins=Copy, Ctrl+Del=ClearWordRight, Ctrl+0=ZoomNormal, Ctrl+A=SelectAll, Ctrl+B=BookmarkLine, Ctrl+C=Copy, Ctrl+E=MacroExecute, Ctrl+F=FindDialog, Ctrl+G=GoToDialog, Ctrl+H=ReplaceDialog, Ctrl+I=AutoIndentChars, Ctrl+M=MacroRecord, Ctrl+N=GoNextBookmark, Ctrl+R=Redo, Ctrl+U=UpperCase, Ctrl+V=Paste, Ctrl+X=Cut, Ctrl+Z=Undo, Ctrl+Add=ZoomIn, Ctrl+Subtract=ZoomOut, Ctrl+OemMinus=NavigateBackward, Ctrl+Shift+End=GoLastLineWithSelection, Ctrl+Shift+Home=GoFirstLineWithSelection, Ctrl+Shift+Left=GoWordLeftWithSelection, Ctrl+Shift+Right=GoWordRightWithSelection, Ctrl+Shift+B=UnbookmarkLine, Ctrl+Shift+C=CommentSelected, Ctrl+Shift+N=GoPrevBookmark, Ctrl+Shift+U=LowerCase, Ctrl+Shift+OemMinus=NavigateForward, Alt+Back=Undo, Alt+Up=MoveSelectedLinesUp, Alt+Down=MoveSelectedLinesDown, Alt+F=FindChar, Alt+Shift+Left=GoLeft_ColumnSelectionMode, Alt+Shift+Up=GoUp_ColumnSelectionMode, Alt+Shift+Right=GoRight_ColumnSelectionMode, Alt+Shift+Down=GoDown_ColumnSelectionMode, Ctrl+D=CloneLine")]
         public string Hotkeys { 
             get { return HotkeysMapping.ToString(); }
             set { HotkeysMapping = HotkeysMapping.Parse(value); }
@@ -3752,6 +3752,10 @@ private void DoAction(FCTBAction action)
                     BookmarkLine(Selection.Start.iLine);
                     break;
 
+                case FCTBAction.CloneLine:
+                    CloneLine(Selection);
+                    break;
+
                 case FCTBAction.GoNextBookmark:
                     GotoNextBookmark(Selection.Start.iLine);
                     break;
@@ -4118,6 +4122,21 @@ public virtual void BookmarkLine(int iLine)
                 bookmarks.Add(iLine);
         }
 
+        /// <summary>
+        /// Clones current line
+        /// </summary>
+        public virtual void CloneLine(Range selection)
+        {
+            // expand selection
+            selection.Expand();
+            // get text of selected lines
+            string text = Environment.NewLine + selection.Text;
+            // move caret to end of selected lines
+            selection.Start = selection.End;
+            // insert text
+            InsertText(text);
+        }
+
         /// <summary>
         /// Unbookmarks current line
         /// </summary>
diff --git a/FastColoredTextBox/Hotkeys.cs b/FastColoredTextBox/Hotkeys.cs
index 9bac1020..1bc2c522 100644
--- a/FastColoredTextBox/Hotkeys.cs
+++ b/FastColoredTextBox/Hotkeys.cs
@@ -91,7 +91,8 @@ public virtual void InitDefault()
             this[KEYS.Control | KEYS.Subtract] = FCTBAction.ZoomOut;
             this[KEYS.Control | KEYS.Add] = FCTBAction.ZoomIn;
             this[KEYS.Control | KEYS.D0] = FCTBAction.ZoomNormal;
-            this[KEYS.Control | KEYS.I] = FCTBAction.AutoIndentChars;   
+            this[KEYS.Control | KEYS.I] = FCTBAction.AutoIndentChars;
+            this[KEYS.Control | KEYS.D] = FCTBAction.CloneLine;
         }
 
         public override string ToString()
@@ -147,6 +148,7 @@ public enum FCTBAction
         ClearHints,
         ClearWordLeft,
         ClearWordRight,
+        CloneLine,
         CommentSelected,
         Copy,
         Cut,