From the FastDraw iPad app, find the play you'd like to see via the mobile app and swipe from right to left. Then select the share option in the middle.
Select the users you want to add mobile access for, then press Done. You can also filter to show only coaches or players. Select Group in the top left corner, then select Coaches, Players, or All Users from the options to filter the users listed. Once done, select Done in the top right corner.