Along_the_Wire Not sure about that. I’ve never used it.
I use the related track filters and the matching tracks feature. I have a few playlists set up but usually just play from the main collection, which is a couple of thousand tunes. The filters are just handy for narrowing that down to a more manageable size. Then the matching tracks, I just use to keep track of mixes that I like.
There are probably better ways to use rekordbox. That’s just the way I’ve come across that works for me