Please please please add subtitle support and a question about audio containers

[roadhazard]

I have lots of MKV files with soft-embedded subtitles. I need to cut out random parts of the videos but need to keep the subtitles. I absolutely love Avidemux's ability to cut my files and would be willing to pay a couple hundred dollars for a lifetime license or a perpetual monthly fee of say $5 if you add the ability to handle subs. Is this feature on your roadmap? LosslessCut does this but no matter what I try, I can't get a perfect cut when the MKV segments are merged back together. I always end up with this weird SPLIT second glitch at the spots I removed despite cutting on key frames. When I chop the same sections with Avidemux, they're perfect.

2nd question/request. When I import my MKVs into Avidemux, they'll often have multiple audio tracks. Example: English AC3, English DTS, Director Commentary, etc. When I chop up an MKV file, the output file lists all those individual audio tracks as: Track 1 [English], Track 2 [English], Track 3 [English] etc. When Avidemux is saving the new file, can it retain the original names for the audio tracks?

Thank you