"place 4 of them at the correct spots" - sounds like one decal to me once you define the 'correct spots' in the decal.
"different components, each with its own refdes" - can you make it multiple gates/symbols (J1A, J1B, J1C) and place them accordingly in the schematic? Why would this one 'cage' require multiple refdes?
Am I missing something? Maybe you can post photos/screenshots of what you are trying to accomplish.