Can "group" collaboration extend to the Songbook App?

I have a pro account and I've purchased the Songbook App. I created a private group and have shared scores to the group. I've invited folks to the group -- and all is PEACHES when any of the group members login via the desktop/website version of MuseScore.

I'm thinking it would be really convenient if the scores shared in the "group" were displayed in the app when the members of the group are logged in (to the app). But, it doesn't seem to work.

The only way I've found for a member of the group to get a "shared" score is if they search my username on the "discover" screen, then select the score for download.

Am I doing this right? Is there a better way to colllaborate with an ensemble?

Steve