From the Menu Templates column at the top of the screen, click to select a menu template (to rename and create a custom menu). A Menu Name window will appear.
If desired, change the name of the new menu. Otherwise, just click on the button. Menu items will be loaded for each group.
OR
Click to select and load an existing custom menu from the Custom Menus column.
To copy the current custom menu: At the bottom of the screen, click on the button. A Menu Name window will appear.
If desired, change the name of the new menu. Otherwise, just click on the button.