Apologies if this has already been addressed before but a search didn't provide the answer..

I have a situation where I would need to transparently send audio streams between audio apps. To cut a long story short, using rme loopback mode on physical ports proved the most convenient approach (yes I've tried virtual cable, rewire, rearoute, jack, wormhole2, etc..). Of course the problem is that it uses as many physical ports as the number of audiostreams sent back and forth, so the question boils down to whether the concept of  virtual ports could be envisaged for this purpose. Is that feasible? Easy to program?

Thanks and best regards,
Thomas