Context Navigation

Changes between Initial Version and Version 1 of Ticket #20258, comment 26

initial	v1
1	1	This functionality is exactly what I'm looking for. I hope it gets added. (following)
	2	I think "galleries" could even be its own sub-menu item under Media (i.e. disconnected from any post). We could create galleries and then use the media button to pick which pre-created gallery we want to insert.
	3	In the gallery manager sub-menu item, it could tell you which posts each gallery is added to so you know if you want to edit/delete it without doing something you regret.