Add additional Onkyo receiver input types

I’m not personally confident enough in my coding abilities to add these myself, but here is a list of some additional valid inputs from the Onkyo TX-NR656 receiver. They were pulled from the HA log file when switching the inputs on the remote. Currently if I add any of these inputs to the sources list, they will be detected by HA when changing the input using the remote, but HA will not send these inputs to the receiver (running 0.37 currently)

Code    Friendly Name
11      STRMBOX
12      TV
2E      Bluetooth

Thanks in advance if anybody can add these additional inputs to be added to the valid input list for the Onkyo component.

Exactly my question as well.
I have found the GitHib page https://github.com/miracle2k/onkyo-eiscp that might solve the problem.

Not really sure how to use it though…