I am merging various mkv files. Each file has a chapter name. When I add/append the files with MKVtoolnix, the output does have the various chapter times correctly placed, but the chapter names disappear. Is there some way to merge these files and retain the chapter names within each file so I don’t have to manually re-enter the name for each one?

Alternatively, is there a better GUI for merging, and achieving the chapter name retention, other than MKVtoolnix?