Feature Request: Channel to bus send volume variable

[discodancepant]

I'd like to be able to display the volume of a specific "channel to bus send", similar to how you can grab the channel to main volume as a variable, but I want to be able to grab a specific bus.

For example, the code to grab the fader of channel one (to mains) is "$(x32:fader_ch_01)". The code to grab the fader of the whole mix bus 11 is:: "$(x32:fader_bus_11)".

I'd like to be able to grab the channel send value to mix-bus 11, something like: "$(x32:fader_ch_01_send_bus_11)" or something similar.