diff --git a/nw/gui/doceditor.py b/nw/gui/doceditor.py
index d10a4d6e..dc25b909 100644
--- a/nw/gui/doceditor.py
+++ b/nw/gui/doceditor.py
@@ -612,6 +612,10 @@ class GuiDocEditor(QTextEdit):
                 theText = nwUnicode.U_EMDASH
             elif theInsert == nwDocInsert.ELLIPSIS:
                 theText = nwUnicode.U_HELLIP
+            elif theInsert == nwDocInsert.MODAPOS_S:
+                theText = nwUnicode.U_MAPOSS
+            elif theInsert == nwDocInsert.MODAPOS_D:
+                theText = nwUnicode.U_MAPOSD
             elif theInsert == nwDocInsert.QUOTE_LS:
                 theText = self.typSQOpen
             elif theInsert == nwDocInsert.QUOTE_RS:
diff --git a/nw/gui/mainmenu.py b/nw/gui/mainmenu.py
index c462c748..4aa7e4e9 100644
--- a/nw/gui/mainmenu.py
+++ b/nw/gui/mainmenu.py
@@ -554,6 +554,24 @@ class GuiMainMenu(QMenuBar):
         # Insert > Separator
         self.insertMenu.addSeparator()
 
+        # Insert > Modifier Single Apostrophe
+        self.aInsMSApos = QAction("Modifier Single Apostrophe", self)
+        self.aInsMSApos.setStatusTip("Insert unicode modifier letter single apostrophe")
+        self.aInsMSApos.setShortcut("Ctrl+K, '")
+        self.aInsMSApos.triggered.connect(lambda: self._docInsert(nwDocInsert.MODAPOS_S))
+        self.insertMenu.addAction(self.aInsMSApos)
+
+        # Insert > Modifier Double Apostrophe
+        self.aInsMDApos = QAction("Modifier Double Apostrophe", self)
+        self.aInsMDApos.setStatusTip("Insert unicode modifier letter double apostrophe")
+        self.aInsMDApos.setShortcut("Ctrl+K, \"")
+        self.aInsMDApos.triggered.connect(lambda: self._docInsert(nwDocInsert.MODAPOS_D))
+        self.insertMenu.addAction(self.aInsMDApos)
+
+        # Insert > Separator
+        self.insertMenu.addSeparator()
+
+        # Insert > Hard Line Break
         # Insert > Hard Line Break
         self.aInsHardBreak = QAction("Hard Line Break", self)
         self.aInsHardBreak.setStatusTip("Insert a hard line break")
diff --git a/nw/guimain.py b/nw/guimain.py
index 9267a49d..48ea5c73 100644
--- a/nw/guimain.py
+++ b/nw/guimain.py
@@ -1039,6 +1039,8 @@ class GuiMain(QMainWindow):
         self.addAction(self.mainMenu.aInsQuoteRS)
         self.addAction(self.mainMenu.aInsQuoteLD)
         self.addAction(self.mainMenu.aInsQuoteRD)
+        self.addAction(self.mainMenu.aInsMSApos)
+        self.addAction(self.mainMenu.aInsMDApos)
         self.addAction(self.mainMenu.aInsHardBreak)
         self.addAction(self.mainMenu.aInsNBSpace)
         self.addAction(self.mainMenu.aInsThinSpace)