It's definitely possible and I agree it's absolutely vital - I brought this up a while ago in a bug report but it has yet to be fixed. Unfortunately, as I've said many times, database housekeeping is very haphazard with HT - even if you delete a title and then rematch, the previous data is retained and reused on a rematch. After a period of time the database becomes very messy with unwanted and unused entries. I use local info when scanning - NFOs, artwork and trailers so every now and again I reset the database and rescan from scratch but you have to be very careful when doing this to make sure everything is in order so that the posters etc all return exactly as previously. But if you get it right, it's quite a fast process - but you shouldn't need to do this - the database should take care of itself. Badges like 4K and HDR are gathered by mediainfo when playing a file so theoretically they would always be correct if rematching worked properly and reset the database entries correctly. Atmos, DTS badges etc are only applied from the use of suffixes, so you do have complete control over that by changing the filename suffixes to match the content.