FileBot

just a little idea for the Interface

I do have often to change Between Several languages; So i had the idea:
additional / instead of the language preference under match preferences, - how about give it its own Little flag button under the Match on the main frame

less C liking, & you are SEEING which language is selected at the moment.

I recommend making Presets for your various database / language / etc configuration sets that you're using often so you can use them via keyboard shortcuts.