interactive button or menu deletion
delmenu(button)
delmenu(gwin,button)
:
The function allows the user to delete buttons or menus create by addmenu in the main or graphics windows command panels. Predefined buttons on Scilab graphic windows can also be deleted.
If possible, it is better to delete first the latest created button for a given window to avoid gaps in command panels.
`addmenu`_('foo')
delmenu('foo')