Zend certified PHP/Magento developer

FFMPEG Removing all subtitle channels except the first english one

I’m not very well versed on FFMPEG, and I’ve tried to do this many times myself, but I couldn’t even figure out the syntax.. So I’m going to ask outwards to people much smarter than myself. I wish to use FFMPEG to remove all non-english options, thereafter deleting them. After that, deleting all english options except the first indexed one. I couldn’t figure that out no matter what I tried, and bashed my head against the wall for about 3 hours trying, with my final attempt being ffmpeg -i "Episode 01 - Yaha-kui zaShunina.mkv" -map 0:v -map 0:s -map 0:m:language:eng -map:0:a:1? -codec copy "copy Episode 01 - Yaha-kui zaShunina.mkv"

This was the only one that I got the right syntax for.. and it still didn’t quite work. Anybody smarter than myself able to help? Also, I’d prefer to preserve all video, and make sure that they’re soft subs over burnt-in — just to clarify.