Had some initial problems with the Xamarin IOS storyboard. First of all, makes it all easier to debug when realizing that one has to clean the app from the emulator to get an updated Storyboard (and sometimes Info.plist?) …
Anyways, my favorite “tutorial” was the resolution to this: https://forums.xamarin.com/discussion/175399/correct-usage-of-storyboard-in-ios-designer