Example :

there is 2 tracks in the group track
the number # of track 2 should be 2 and the number of track 3 should be 3 if the group track 1 is closed
(for matching with the APC faders)

and when the group track 1 is opened, the number # should be updated like here with the correct number
Mr Ableton thanks in advance for these very important requests I think!