Unfortunately there doesn't appear to be an option to turn on background mask for an mtext object. Coming from a Land Desktop background, I'm not sure how I'm going to do without this. I did find another thread that talked about writing a lisp routine to toggle the background mask flag off or on for an mtext object, so this does seem to be an attribute that is built into Intellicad. Apparently they chose not to include this functionality in their gui.
Here is the link to the thread that talks about using a lisp routine, as well as some actual code:
viewtopic.php?f=5&t=3685I will probably try to recreate that routine and attach it to a toolbar button.