When editing a PLC entry in the PLC Database Editor you should be able to add multiple catalog numbers to the same Module Info element.
I realize you can just inset a new module info element that doesnt show a terminal/I/O point. However this forces the new catalog number to be assigned to a different TAG name and it makes a bunch of new attributes that you dont need to show on the symbol.
This will be helpful for Remote I/O racks that usually have at least 2 part numbers associated with it. For example an ET200SP remote I/O system from Siemens will have two part numbers associated with each module. This way I can create symbols in the DB and drop them in the project and not have to worry about adding catalog numbers.
