Where is located the Unlocking Xib files option 'Reset Locking Control' (for 'Localization Locking') in xCode 5 for edition

问题

Where is located the 'Localization Locking' Option ('Reset Locking Control') for Interface builder 5 in xCode 5?

In Xcode 4.6.3 I have some xib files locked using the 'Localization Locking' feature (All properties) in interface builder 4.6 to not accidentally changes the Layouts…
After opening my project with xCode 5.1 it updated all the xib files to be only opened by Interface builder 5.

Now I want to revert the 'Interface Builder Option' to Open with Interface Builder 4.6 BUT I CANT SAVE THE CHANGES as the files are locked and I can't open those files with xCode 4.6 any More to unlock THEM!

Also, I can't DO ANY Modifications to this files in xCode 5 (Interface Builder 5) because there locked!

edit: 'It IS located in Menu: Editor-> Localization Locking -> Reset Locking Control'!