Unfortunately, our CAD department and Fab Shop share a database, so we cannot utilize either of those settings to suppress the Oversized Item dialog boxes for the CAD department, without forcing those settings on the FAB Shop.  What I was requesting was a way to allow our CAD department to ignore always when they are using AutoCAD CADmep, but still alow the FAB Shop see and utilize those windows as they need to in CAMduct.  The Auto-set also is unusable as it forces 1 seam for all, which is an issue when it comes to standard versus welded services.

Any threads I could find regarding this made it seem as those this was a common issue - the either/or, on/off solution just doesn't really address the issue, especially in regards to shared database settings.