Allow markers to be selected

app/panel/timebased/timebased.cpp

@@ -211,4 +211,9 @@ void TimeBasedPanel::GoToOut()
   GetTimeBasedWidget()->GoToOut();
 }
 
+void TimeBasedPanel::DeleteSelected()
+{
+  GetTimeBasedWidget()->DeleteSelected();
+}
+
 }

app/panel/timebased/timebased.h

@@ -98,6 +98,8 @@ public:
 
   virtual void GoToOut() override;
 
+  virtual void DeleteSelected() override;
+
 public slots:
   void SetTimebase(const rational& timebase);