VcaRef, BusRef, EditorVcaRef and EditorBusRef are all needed

Unity
1

It is currently impossible in-editor to get the list of available busses and vcas. To create a custom BankRef would require directly reading the string banks, assuming that this info is present there.

Busses and vcas should be treated like all fmod assets, and be searchable and serializable.

2

Thanks for pointing this out - I agree that they should be searchable and serializable in editor. I’ve added this to our internal feature/improvement tracker.