Update fader value

Hi, I'm using an M4L device that controls Ableton thought he live lom.
Is there a way to let osc update the fade value if I select a new fader?

I'm using this M4L device: Dropbox - OSCControl.amxd - Simplify your life

now I can change the volume of the selected track by one fader but how do I let the fader update the volume value if I select another track? (see video)

It's think that's a question for the creator of the M4L patch, unless someone else here uses it.