Addition of external audio into a song

Will MuseScore 4 have the ability to playback additional files into a song?

Let's say I wanted to add some atmospheric effects to a song, like morse code, TV static and maybe some radio chatter. As of now, I would need a seperate DAW, like FruityLoops Studio. If MuseScore 4 is improving its piano roll for usability and is adding VST support, I do believe this feature should be considered as well.