according to Recorder - Home Assistant
the options can only be set by yaml and not in the frontend.
If this is WTH - it should be posted in a corr. chapter. And there is a similar WTH topic (may be even > 1) already.
Duplicate, will find and link dupe when back at desk.
Found it for you. @muCruiser you can add your vote here: Wth we can't configure the recorder via UI