Onkyo volume control

I want to resurrect an old question about controlling Onkyo receiver through HomeWave.

I can turn Onkyo zones via HW On/Off switch and I can see some data via HW Multi-value display.

I can assign Onkyo zones via HW Dimmer, however HW Dimmer does not work with Onkyo.

Any hope to fix it?

Thanks in advance

I am also looking for usps tracking solutions for the same. Help is appreciated.

Thanks in advance.