Has anyone had experience in using a time machine back up stored on an external hard drive to build a user profile on a machine set up with multiple profiles? I have a time machine back up from my iMac at home, and would like to use it if possible to create an identical user profile on a Macbook Pro without wiping clean what's there now. I share the Macbook with my wife, so if the back up wipes out what's already in the machine, my iMac is 14,000 miles away so the situation wouldn't be good.