Open Window-Menu from Button Script ?

[Brainn]

hey,
im playing around with my artframe/chatframe currently and im trying to open the window-menu (the one you get when rightclicking the window title bar) from a button inside the window. the basic idea behind this is i have a large artframe that contains two chatframes at the bottom of my screen and i want to be able to access the chatframe copy+paste windows without the need to either have a titlebar on the window or unlock the desktop to get the windows popup-menu.
is this even possible ? using the Button Script feature i believe it should, but i have no idea what function i would need to call from that button

[sigg]

A new feature Button RDX window is available.
You can add the button and select a highlight texture into your design.
The button will open the menu window.