To open the Menu Set Editor, select Customize in the menu set drop-down list. (Located on the Status line (toolbar).)
In the Menu Set Editor, you can create, edit, rename, remove, and restore menu sets. You can also customize a menu set by removing menus from the center column (Menus in menu set) or adding new menus from the right column (All menus). For detailed instructions, see Manage custom menu sets.
Creates a new menu set.
Renames the currently selected menu set.
Removes the currently selected menu set.
Restores the menu set to its default state. This option is available if the menu set currently selected in the Menu Sets column is one of the default menu sets (Modeling, Rigging, Animation, FX, and Rendering).
Restores the default menu sets (Modeling, Rigging, Animation, FX, and Rendering), while preserving any custom menu sets that have been added.