We know that.You just can't call them.I think you package the function for adding/removing the line it would work.
There is function newPlayerListGui::update(%this, %cl, %name, %BL_ID, %trust, %admin, %score) if you want to use that. I think it's called when it buts someone on the list and when it removes someone.
Do I need to push the gui for it to be called?