I've raised a feature request to add some code-comfort features present in jetbrains IDE.
1. Hotkey to show all members in a class, which can be filtered by typing, and will jump straight to that member,
2. Modifier key to move the cursor to previous/next member (i.e move the caret to the previous method declaration, or previous property, variable declaration),
3. Ability to type to filter the list of overrides/interface methods - this means no taking hands off the keyboard and makes it easier to learn new APIs (as you can quickly find methods that match the thing you want to do).
The bug is here, please show your support so that Xamarin realize that having to constantly take our hands off the keyboard for navigation and method overriding is a minor, yet significant detriment to our productivity: