I have recently updated my drawing templates and have the title block set up to link to the custom properties of the part within the drawing.  The updated part and assembly files have these custom properties set up and I have written a macro that will add the custom properties if an old part gets used. 

If the case where an old part gets a new drawing, sometimes the other engineers here forget to run the macro that updates the custom properties, and will go right into the drawing and type in the info in the title block.  Instead of adding properties to the "Custom" tab in the file properties, the properties are added to "Configuration Specific".  I would like these properties to be added to "Custom" properties, is there anyway to do this?