Replace "actionOpenRecent" with "menuOpenRecent". Add "actionOpenRecentMore" as an element in the "menuOpenRecent"-submenu.

mapeditor/mainwindow.cpp

@@ -226,6 +226,7 @@ MainWindow::MainWindow(QWidget* parent) :
 	ui->toolSelect->setIcon(QIcon{":/icons/tool-select.png"});
 	ui->actionOpen->setIcon(QIcon{":/icons/document-open.png"});
 	ui->actionOpenRecent->setIcon(QIcon{":/icons/document-open-recent.png"});
+	ui->menuOpenRecent->setIcon(QIcon{":/icons/document-open-recent.png"});
 	ui->actionSave->setIcon(QIcon{":/icons/document-save.png"});
 	ui->actionNew->setIcon(QIcon{":/icons/document-new.png"});
 	ui->actionLevel->setIcon(QIcon{":/icons/toggle-underground.png"});
@@ -493,6 +494,11 @@ void MainWindow::on_actionOpenRecent_triggered()
 	d.exec();
 }
 
+void MainWindow::on_actionOpenRecentMore_triggered()
+{
+	on_actionOpenRecent_triggered();
+}
+
 void MainWindow::saveMap()
 {
 	if(!controller.map())

mapeditor/mainwindow.h

@@ -62,6 +62,8 @@ private slots:
 	
 	void on_actionOpenRecent_triggered();
 
+	void on_actionOpenRecentMore_triggered();
+
 	void on_actionSave_as_triggered();
 
 	void on_actionNew_triggered();

mapeditor/mainwindow.ui

@@ -58,9 +58,15 @@
     <property name="title">
      <string>File</string>
     </property>
+    <widget class="QMenu" name="menuOpenRecent">
+     <property name="title">
+      <string>Open Recent</string>
+     </property>
+     <addaction name="actionOpenRecentMore"/>
+    </widget>
     <addaction name="actionNew"/>
     <addaction name="actionOpen"/>
-    <addaction name="actionOpenRecent"/>
+    <addaction name="menuOpenRecent"/>
     <addaction name="actionSave"/>
     <addaction name="actionSave_as"/>
     <addaction name="actionExport"/>
@@ -1025,10 +1031,15 @@
     <property name="text">
      <string>Open Recent</string>
     </property>
+  </action>
+  <action name="actionOpenRecentMore">
+    <property name="text">
+     <string>More...</string>
+    </property>
     <property name="shortcut">
      <string notr="true">Ctrl+R</string>
     </property>
-   </action>
+  </action>
   <action name="actionSave">
    <property name="text">
     <string>Save</string>