You can try my plug-in:
https://forum.audacityteam.org/t/arrange-your-tracks-with-chain-it-up-ny/26201/1
The only thing you have to do is to put your different parts isolated one under the other in new tracks.
You can move the pre-labeled parts with ctrl-i and ctrl-d into new tracks isolate/duplicate).
The gap between the parts can freely be chosen. Ask if you have any questions.