setmenu
setmenu —  interactive button or menu activation  
Calling sequence
setmenu(button [,nsub])   
setmenu(gwin,button [,nsub])  
Parameters
| button | : a character string. The button name | 
| gwin | : integer. The number of graphic window where the button is  installed | 
| nsub | : integer. The number of submenu to de-activate (if any). If button has no sub-menu, nsub is ignored | 
Description
    The function allows the user to make active  buttons or menus created by
    addmenu in the main or graphics windows command panels.
Examples
addmenu('foo')   //New button made in main scilab window
unsetmenu('foo')   //button foo cannot be activated (grey string)
setmenu('foo')     //button foo can be activated (black string)
 
  See also
delmenu, unsetmenu, addmenu