Unlocking an item by editing it on all websites
You may be able to unlock a locked item by explicitly selecting to edit it on all websites. You can then modify it on the webpage. Note that your changes will appear on other websites as well. To see if an item appears on other websites than this one, check the BluePrinting Status property in the Properties dialog of the item.
Procedure
What to do next
You can now modify the item. Changes appear on all websites.