Right, the problem here is that the menu is created once when a player disconnects and is kept and not closed until the next player disconnects. So you can't just do it the way you posted. In the attached version a few posts back i've abused the MenuAction_Start action to change the menu option flags to show/hide the back button right before the menu is rendered. The only small downside is you might get a back button, if you've selected a player in the !ltltb menu, another admin opens the menu through the admin menu and you go back to the player list. buuut, i don't care.