Thanks for finally having Mp3tag support Matroska files. Matroska is quite a powerful and flexible container, thus a fitting addition to Mp3tag.
My question is, what "text" should I input into the "Options > Tags > Mapping" for Matroska? This is the place where after a fresh installation, there are 3 items there, which are all of "VorbisComment".
I want to map some Matroska tags but I had no luck. I tried inputting "Matroska", "MKV", and "MKA", but no luck, it just constantly reverts to "ID3v2". Thanks in advance.