Setting default audio tracks

[gerbetta33]

I've got a simple 3.1 soundbar. Most movies in my library are 7.1 atmos by default, but 7.1 sounds quiet and poorly balanced through a 3.1 system. I really dont want to have to manually change to 5.1 every time I select a movie to watch. Can I set it to 5.1 by default?

Also, sometimes subtitles come on by default, and sometimes not. Can i make them always off by default?

Im using Jellyfin App on my google tv, its a TCL Q7.