Keyboard shortcut for custom metadata

This might be a bug report and a wish list item at the same time.

There’s already a very good set of hotkeys for activating the various tabs of the Inspector. However, there is no good way to switch to the custom metadata editor using the keyboard only. I can shift to the Keywords tab view using Ctl-Alt-Cmd-J, and I can toggle between standard metadata and custom metadata using Cmd-7, but I don’t see a keyboard shortcut for moving the cursor focus to the custom metadata.

I love the custom metadata feature added in 2.0, and I’m imagining that this is a particular use case that was overlooked on the way to release.