You have to have a menu (not the list of menus) displayed on the right side of the dialog (current menu structure) to be able to add commands. So, yes, if you want a menu called "Special", you have to first create a new menu in your active menu sturcutre ... then locate the Special group in the left group of all available commands ... and finally copy the special commands into your new Special menu.
Whew, eh?
Cheers,
Karl
One of the forum moderators
AC 27 USA and earlier • macOS Ventura 13.6.9, MacBook Pro M2 Max 12CPU/30GPU cores, 32GB