Ok, so let me explain. Now you do not need the buttons to show on the toolbar itself. Now you just press on the typing area and three buttons popup cut/copy/paste. Now paste pops-up most of the time and cut/copy shows sometimes. But I guess that issue is because of the editor itself and not because of Q2A.
So to answer simply, yes copy/paste works now for me. And you don't need any buttons on the editor.