Yes, in my gui I hide and show buttons by moving them outside the area of the GUI, they are hidden then. You can use SetGUIObjectPosition (GUI, int object, int x, int y) to move them away and back. You'd have to store the original position to move it back though and there is no GetGUIObjectPosition function.
It can be quite messy.. I think being able to turn on and off gui objects would be a useful feature request.
It can be quite messy.. I think being able to turn on and off gui objects would be a useful feature request.