Subscribing to Calendars in Omnifocus iOS v2.2

The instruction to set up calendar subscriptions are unclear. The in-app instructions are never displayed after touching “Security Info” “Security Info” spawns a browser page which refers back to the in-app instructions. The browser page says "Set up the subscription according to the in-app instructions!

I touched “Subscribed to Calendar” which prompted me for the OmniGroup WebDav username and password. I enter the username and password and switchover to the “Mail, Contacts and Calendars” section of the settings app. There is no account named “Subscribed Calendars” When does “Subscribed Calendars” get created and by whom? Also, where are the SSL setting for the account?