27/10/2022
Here is a tutorial for fellow recording nerds.
When editing multiple items at once in Reaper, it can be a pain to have to constantly re-select multiple tracks that are already grouped. This is the simple solution to alleviate that issue.
1. Make sure the button with the chain link is on, this is a group editing button, it simply turns on and off grouping.
2. Next, make sure you right click the same button, and select "selecting one item selects group". ..There you go. Now when you click said snare drum, the other items in it's group get automatically selected too.