Edit SSA subtitle inside MKV files without extracting and remuxing it back

[Solid One]

Hi ppl.

I have some anime episodes in MKV format, with subtitles in SSA format, muxed inside the MKV file.

I want to edit a few strings inside all episodes' subtitles, and I know it's possible to do it using MKVMerge, since I've already did it before. But for each episode, I'd need to extract the subtitle, edit using Aegisub (or any text editor) and mux it back, creating a new MKV file on the process. This works, but it's a very tiring process if you ask me.

I was wondering if there is a tool to make this process faster. Some kind of program that allow me to edit muxed subtitles on-the-fly, by extracting it, opening it for me, and put it back on MKV without creating a new one. Anyone know if such tool exists?

[Budman1]

Did you know that Subtitle edit and Aegisub allow you to just load the MKV and select the subtitle you want? It's one less step since you do not need to actually extract. Anything else would have to take your saved subtitle files and call MKVMerge with the command line:

"C:\Program Files (x86)\MKVToolNix\mkvmerge.exe" -o "C:\\Users\\Name\\Desktop\\test\\[dp]_Shinobi_-_Heart_Under_Blade_(h264+AC3)_sample.mkv" "--track-name" "0:[dp] Shinobi - Heart Under Blade (h264)" "--default-track" "0:yes" "--forced-track" "0:no" "--display-dimensions" "0:864x368" "--language" "1:jpn" "--track-name" "1:5.1 AC3" "--default-track" "1:yes" "--forced-track" "1:no" "--language" "3:eng" "--track-name" "3:VobSub" "--default-track" "3:no" "--forced-track" "3:no" "--language" "4:jpn" "--track-name" "4:VobSub" "--default-track" "4:no" "--forced-track" "4:no" "-a" "1" "-d" "0" "-s" "3,4" "-T" "--no-global-tags" "(" "C:\\Users\\Name\\Desktop\\test\\[dp]_Shinobi_-_Heart_Under_Blade_(h264+AC3)_sample.mkv" ")" "--forced-track" "0:no" "-s" "0" "-D" "-A" "-T" "--no-global-tags" "--no-chapters" "(" "C:\\Users\\Name\\Desktop\\[dp]_Shinobi_-_Heart_Under_Blade_(h264+AC3)_sample.srt" ")" "--track-order" "0:0,0:1,1:0,0:3,0:4"

Not insurmountable but I doubt there is any program out there that will do that... yet.