Invert Commands

Is it possible to invert one command to another? I would like to reduce the gain on a channel and automatically increase the fader gain at the same time.

e.g. if I decrease the value by 02.1 of gain it would increase the volume by 02.1

Sysex values for each variant are below:

OSC: /ch/01/mix/fader +10.0 = F0 00 20 32 32 2F 63 68 2F 30 31 2F 6D 69 78 2F 66 61 64 65 72 20 2B 31 30 2E 30 F7
OSC: /ch/01/mix/fader +09.9 = F0 00 20 32 32 2F 63 68 2F 30 31 2F 6D 69 78 2F 66 61 64 65 72 20 2B 30 39 2E 39 F7
OSC: /ch/01/mix/fader +09.8 = F0 00 20 32 32 2F 63 68 2F 30 31 2F 6D 69 78 2F 66 61 64 65 72 20 2B 30 39 2E 38 F7
OSC: /ch/01/mix/fader +09.7 = F0 00 20 32 32 2F 63 68 2F 30 31 2F 6D 69 78 2F 66 61 64 65 72 20 2B 30 39 2E 37 F7
OSC: /ch/01/mix/fader +00.0 = F0 00 20 32 32 2F 63 68 2F 30 31 2F 6D 69 78 2F 66 61 64 65 72 20 2B 30 30 2E 30 F7
OSC: /ch/01/mix/fader -10.0 = F0 00 20 32 32 2F 63 68 2F 30 31 2F 6D 69 78 2F 66 61 64 65 72 20 2D 31 30 2E 30 F7

OSC: /headamp/01/gain +10.0 = F0 00 20 32 32 2F 68 65 61 64 61 6D 70 2F 30 31 2F 67 61 69 6E 20 2B 31 30 2E 30 F7
OSC: /headamp/01/gain +09.9 = F0 00 20 32 32 2F 68 65 61 64 61 6D 70 2F 30 31 2F 67 61 69 6E 20 2B 30 39 2E 39 F7
OSC: /headamp/01/gain +09.8 = F0 00 20 32 32 2F 68 65 61 64 61 6D 70 2F 30 31 2F 67 61 69 6E 20 2B 30 39 2E 38 F7
OSC: /headamp/01/gain +09.7 = F0 00 20 32 32 2F 68 65 61 64 61 6D 70 2F 30 31 2F 67 61 69 6E 20 2B 30 39 2E 37 F7
OSC: /headamp/01/gain +00.0 = F0 00 20 32 32 2F 68 65 61 64 61 6D 70 2F 30 31 2F 67 61 69 6E 20 2B 30 30 2E 30 F7
OSC: /headamp/01/gain -10.0 = F0 00 20 32 32 2F 68 65 61 64 61 6D 70 2F 30 31 2F 67 61 69 6E 20 2D 31 30 2E 30 F7

Hi Bigchap.

So there's a bunch of stuff that needs to happen for this to work. Is this happening on a touch screen controller that can receive OSC messages to be updated from an external source?

Yeah, it's the behringer xr18 which interface with a laptop or tablet via wifi. I use it with a laptop via usb connection for midi send/receive. I can send the corresponding commands to the xr18 via bmt but can't figure out how to increase one value whilst decreasing another.