Cannot move tool bar icons in Eclipse 4.2 Juno

Searching for tool bar actions in Juno shows that user should be able to unlock tool bar for customization. Unfortunately this function is not working, see bug 340695.

If you really wanted to move the icons there is a workaround. Change the theme to Windows 7 and restart. You should now be able to move items around.

References:
http://stackoverflow.com/questions/11301795/how-to-unlock-toolbars-in-eclipse-4-2-juno