To protect shapes from accidental editing:
1.Select the shapes you want to protect.
2.Right-click with your mouse on the selection.
3.In the menu that now appears, point to Protect and from the submenu select Protect.
To remove the protection:
1.Select the shapes whose protection you want to remove.
2.Right-click with your mouse on the selection.
3.In the menu that now appears, point to Protect and from the submenu select Cancel Protection.