Is it possible to have a different menu, one for the window itself and another for the side listbox ? I went through the help file for menus and @windows but it seems as if the menu is unique. Am I mistaken ?
Thanks in advance for any help

u can check if your mouse is on a listbox with $mouse.lb identifier
so for example u can do this:
menu @window {
$iif($mouse.lb,listbox):echo -a listbox
$iif(!$mouse.lb,window):echo -a window
}