Included in the Developer Toolbox Update Set available on Share (link to Share in the post).
Here is "Switch to List View". It's a "Form context menu" UI Action that simply switches to the list view for the table, and filters the list to only display the current record:
It's useful, for instance, when you need to see or modify a field that is not, for whatever reason, displayed on the form view. You can personalize your list view, add the appropriate fields and update the record if you need to.
I've attached the XML export of my UI Action record if you want to just import that. Try it out in a personal dev instance first.
