To move or copy buttons between menus:
Open the menu whose buttons you want to copy or move.
Select a button.
To select more than one button, press the Shift key as you click buttons. To select all buttons, select one button and then choose Edit > Select All Buttons.
Choose Edit > Cut, which deletes the buttons from the current menu, or choose Edit > Copy to copy them.
Open the menu where you want to move the buttons (click the button for it on the current menu), and choose Edit > Paste.
The style of the buttons is preserved, as are their links. For example, if you move a button that links to a slideshow, it still links to that same slideshow from the new menu.