In system we can set duplicate drawings via MT , this however is a global setting, rather than drawing type specific .
For users that like their parts on the assemblies, then the duplicate setting has to be enabled, because the same part may appear in several assembly files.
So rather than have one setting, split this to have one opition for parts, one for assemblies, if both selected , the original global setting is restored.
At present difficult to control, users can end up with several copies of assemblies, etc.