collaboration composing scores or teaching

I am looking for a way to use Musescore together with a few people (which are remote) in order to learn them composing. So I need only one session but a way to enter via multiple people also mouse en keyboard in to the same score. Also nice if multiple copies can be edited separately and then orderly merged together (the change of every member must be as such annotated.
Is that possible ? Nativily or via addin ?