I know most users have forgotten what UserTracks are.
They used to play through a Hold or Shot because UserTracks don't have any mechanism for them, but then they were made to stop where a Hold or Shot is.
Because you can regenerate and change UserTracks now at any bar as well as Edit Riff function you can get them to play Holds, Push or Shot but you need an option for this so if you want to manually do this the UserTrack will play where a Hold is allowing you to change the UserTrack to the Hold UserTrack that belongs with it. The Holds can also be used for a Push or a Shot as you can easily adjust with the Edit Riff function.
I will have to now make up some to demonstrate this.

https://stash.reaper.fm/u/ReaTrak (Scripts for Biab Reaper)
Open SGU in Reaper Instantly