Need a way to add audio file to already opened video - like it is for a subtitle

Currently the way to open video file with external audio track:

Menu Media→Open Media Add file choose "Show more options" choose "Play another media..." Press Browse on "Extra media" found and choose audio file click Play

It's a very long and complicated way. Need a way quickly and simply add audio file to already opened video - like it is for a subtitle:

when video already open - menu Audio→Add audio track