Synths with multiple outputs can feed more than one track, so your suggestion would probably not work.
I am suggesting for outputs to follow track positions (in the drop down list/ of outputs ) - so it will work , if track 4,18,36 are all receiving from output 2 , then I drag track 18 to position 14 , then it should reflect the new position in the drop down output list .
You can currently label a track output in synth rack browser and it will reflect on the output drop down list , so if you have multiple outputs from one source you could name that primary source something to suit , which would then show on all the same source outputs in track view .