In order to enable the AMA section for a Supercast creator do the following steps:
1) Go to the Supercast Admin page.
2) Click on the Podcasts button at the top and search for the podcast you are looking for
3) When you arrive to the podcast profile you are looking for, click on Edit Podcast
4) Scroll down to the bottom of the page, and click on the check box beside the "Ama enabled" field
5) To save your change, click the Update Podcast button at the bottom of the page.
6) To disable a podcast's AMA, uncheck the checkbox beside "Ama enabled" and click on the Update Podcast button.