Set period for dripped content

I've just started setting up the protected content plugin, and have configured it for drip content and set up the billing method. When I go to the one membership I've created and then click on the "Edit Dripped Content" button, then select the Pages tab, I'm given a list of five pages. I clicked "Member Access" to make them all green.

1. When I click on the pencils after "0 days after registration" nothing happens.
2. When I click on the membership level to see the overview, none of the pages are shown below "Available Content"