Can you tell me with witch software you cant to use your dimmer pack?
Because, if you are using cuety, you won't be able to use it as cuety do not manage subfixtures.
If you are using cuelux you shoudl be able to see only 10 subfixtures,
If you are using cuelux pro, you shoudl be able to see it completly.
Now about solutions:
For cuety, you can just patch 24 times a 1ch dimmer pack from teh generic manufacturer.
For cuelux, you can patch 3 times a 6ch dimmer pack from teh generix manufacturer.
ANd if you are using cuelux pro i will create the file you need!