First of all, you can get direct support for using the SMS campaigns app by joining the app support team from within the app by clicking the icon at the bottom right corner of the app.
To your questions, unfortunately, the app is for each individual user to send/schedule SMS campaigns. Super admin cannot send messages nor campaigns on behalf of other users. And there is no integration with other CRM system to inject recipients list to the app.
If you need more features, check out the Beetexting app from RingCentral app gallery.
Thank you! I’ll join that support group and also check out Beetexting.
