I just figured this out and thought I’d share my screen shots for anyone else wanting this sort of thing.
I have a generic template with seven items in a song that all feed into the processing rack. I have a Behringer BCF2000 motorized slider box, and wanted the sliders to reflect the mouse-controlled positions of the output gains for each item.
I also wanted to be able to push a single button (the top-left knob in this case - on the BCF2000 each knob acts as a switch if you press it down) to reset all the sliders to Zero Db.
Since I re-use this song, using save-as to make new versions of it and replacing the racks and plugins as needed into the seven positions, I used “Object by Index” for the bindings, so their assignments would not be specific to a particular rack or plugin, but rather would simply reference whatever was in the song at that position (1-7).
I use the eighth slider as a master gain (the second of the two sliders at the top-right of the page).
Here is the page, followed by the bindings I used:
As you can divulge from the bindings:
The first eight send the BCF2000 sliders to the objects.
The second set of eight send the reset command to all by addressing the gain sliders of each object with the same switch.
The third set of eight send the object’s gain position out to the motorized sliders on the BCF2000 so that they reflect the gain position on the screen.
By using objects I can recycle this “song” easily, giving me fades on each instrument as well as a master fader for all of them!
If you have a different fader box that sends generic MIDI, you can adapt this approach to that device. Of course, if you do not have motorized faders, you do not need to use the last eight bindings to send signals to the mixer. But this lays out an example of how this can work. I’m doing a similar approach for the knobs at the top of the BCF2000, which uses lights around the knob as feedback for the position it is at.