Re: Restrict model edits to PMI only
You could experiment with it with MBD without affecting anything you are currently doing.
Just make a WAVE link body of the part. This does not change the existing part model or any associated drawings.
You could experiment with putting PMI on this associative WAVE linked copy without making any changes to released data.
Especially if you use the workflow where you do not add basic dimensions, it would not be that hard to just add other notes, datums, and FCF, etc. You would then be able to experiment/demonstrate how it would work to export the 3D PDF.