You have several files that contain the language or language code in their name, e.g. The Incredibles [fre].srt. You'd like the GUI to auto-select fre as the track's language when you add such a file.
The Incredibles [fre].srt
Up to and including v21 the GUI did not support such functionality due to various concerns. I've since reconsidered. Release v22 will contain such functionality.
Categories: merging, metadata