derived output naming rule

Hello

everyone is the rule for the file names of the derived output being expanded in the next release or is something in plan so that own attributes or, for example, the EIM number can be used?
At the moment only State, Title, Name Revision and Description are possible.
Our customers must be able to fill the PDF, STEP,... with their own attributes. Or at least with the EIM number

 

Thank you for your help and all additional information