ReSharper 8.0 Web Help

This Navigate to command navigates to all interface members implemented in the current type. If there is only one implemented member, ReSharper will set the caret there; if there are several implemented members, they all will be highlighted.

It becomes available when you invoke the Navigate To shortcut upon an interface entry in a type that implements it:
Navigation_and_Search__Navigate_from_Here__implementingmembers

Tip

To navigate to the next highlighted implementing member, choose ReSharper | Find | Next Item or press Ctrl+Alt+DownCtrl+Alt+PageDown.
To navigate to the previous highlighted implementing member, choose ReSharper | Find | Previous Item or press Ctrl+Alt+UpCtrl+Alt+PageUp.