[oXygen-user] Keeping leading white space

An element with two leading blank spaces: <x> data</x> reformats to one: <x> data</x> I need to keep all leading white space within an element when reformatting. I had this working for version 10, but my update to version 11 has lost this ability. For the life of me, I cannot remember the preferences setting needed. Can anyone remind me? Thanks, Mark