[LG Smart TV] Where is the "Do not show subtitles by default" setting for DLNA?

Question

TVs

Hello.
Please help - I can not find where to turn off the display of subtitles in films received via DLNA.
I use Serviio server and TV set LG 47LM620T
I often watch short series like Friends (~20min), source - MKV with subtitles. I'm tired of going into the menu every time and turning off
Subtitles in MKV not "Forced".
Maybe I'm looking in the wrong direction at all and the problem is not in the TV set?