MKV editor

Tell me which program can NORMALLY edit .MKV files. A certain series has been downloaded from the torrent, it is in Japanese, there is voice acting in the .MKA format for the folder with the film, so I need to remove the Japanese voice acting and put the Russian one in its place. Out of habit, I downloaded the "mkvtoolnix" program and copes with the result, but only one file at a time and there are 51 of them. And besides, the program does not change the original file, but creates a copy with a postscript (1). I'm not a fool, I tried to open 10 files at once and try to immediately stick the voice acting in everything, but the program does not help it processes the files longer, but it still processes only the first file. Tell me is there a normal program to replace the voice acting in all files?