Mac App Store: Enable debug menu

The Mac App Store has a debug menu just like the most standard Apple applications in OS X. From this menu you can access various of other options such as deleting cookies or the quick search for updates. Close the Mac App Store app and use the following command in Terminal to enable the debug menu.

defaults write ShowDebugMenu -bool true

Revert to the default setting with the following command

defaults delete ShowDebugMenu

Debug menu in Mac App Store