I would like to be able to navigate a list of hidden elements. I imagine this feature to be a non-modal window (one that does't grab focus) that contains a scrollable and searchable/filtered list of all elements that are hidden in the current view.
Selecting hidden element(s) from the list should highlight it in the view. There should be a toggle to unhide the selected element(s).
This feature would be superior, in my opinion, to the current "reveal hidden" feature, which reveals all hidden items which makes it really hard to actually find the thing you're trying to unhide.