Avidemux Forum

I have a very large mkv file that I wish to cut into different mkv files.  Right now I only know how to cut them into one file, save, reimport, cut, save, reimport, and so on.  Is there a way to do it all at once or at least without reimporting?

Do you mean you just wanna save multiple separate segments? Then don't cut parts out, just mark in/out points, and when you save, avidemux will only save the marked in/out area.
Then you can select another segment and repeat. Press I/O to place in/out markers or R to clear them if you need to.