Dip-fed Content & Notifications based on Start Date

Right now the only was to drip-feed content through the platform seems to be segmenting by the date they joined, but ideally we would have it be that playlists would be realeased/visible based on an indvidual’s start date, releasing a playlist every week (or every other week) to complete a 6 month learning journey. Would be great if email could be sent to the clients when these playlists are ready to automatically have them logging back into the platform instead of doing it manually