Archive Spaces
It would be great if we could archive spaces and/or let the people hide things from the menu.
I have a bunch of spaces that aren't really active anymore (from masterclasses and workshops over a year ago). I don't want to keep them in the sidebar but I want the content available if the people want to revisit it.
You can remove them from the sidebar by removing them from the menu group they are in. Settings->Space Groups.