When I first started using Stage Traxx I decided for a specific scheme;
1.Click 2.Tracks 3.Bass + ...the rest of additional tracks I may need.

I had this set up for 20+ songs. But I later found out that a better and easier scheme for me would be;
1.Click 2.Bass 3.Tracks 4.Tracks(2), etc...

Because for some songs I would have to go back and add extra tracks such as Harmonies or Bass Drops.

My question is, how can I change all the songs where I have my Pre-Recorded Bass on Track 3 to now be on Track 2?
And if there is no simple way; what is the easiest way (step-by-step) to do this?

Thank you!

There is no mass edit in Stage Traxx. So you will have to go step by step. I would first add the existing bass track to track 2 and then remove it from track 3.