background bitmap

 From:  mickelsen
3705.1 
I've been searching through the manual trying to find out how to do a "background bitmap". That's what they call it in Rhino. It's where you read in a .jpeg picture and use it as a background to guide what you're drawing. I believe you can do this in MoI, but I haven't been able to find the documentation on it. Can someone point me in the right direction?
Thanks,
Mark