I used to think this was needed for Xtreme too, but to be honest an easier to use tracer, converting bitmap to vector, would probably be a better solution, preserving edit-ability and freedom from resolution restraints.

I find the present tracer too complicated and hit and miss, I can spend hours fiddling with the settings.

Is it possible to swap tracer settings between users? If so, a collection of custom settings would be a useful resource.