I think what he meant to say was "win api [Windows Aplication Programming Interface]... but with the free edition [of gamestudio] I dont know if it is possible because there are issues receving mouse on click events, but that might be updated in the latest revision".

I was reading in one of the later AUM's [73] about win programming. You could get some ideas from the lite c tutorials there.

#include <windows.h>;

Anything can be programmed with a little determination and know-how.

You could also imitate this using panels, on mouse overs and on click events as an alternative.