change marker of current reverted value

[Piyush Jain]

I am using ace editor in my project. I added two events.

1. ctrl+4 - on this event user can update selected text. It is working file.
2. ctrl+z - on this event I am calling a method. code is given below.

public handleUndo(modal) {
  let markersList = this.templateeditor.getEditor().session.getMarkers(); 


  this.templateeditor.getEditor().session.getUndoManager().undo();
  this.templateeditor.getEditor().getSelection().clearSelection();

  this.templateeditor.getEditor().session.addMarker(range, 'undoMarker', 'text', true)

}

whenever user is changing value using ctrl+4, I am adding a marker which highlights selected text.

whenever user press ctrl+z value is reverting back properly but highlighting is not removing.

Can someone please tell me how can I do that.

Can I replace current marker ?

Thanks in Advance