We use ImageMaps on our server and we created many maps which we only used a few times. Those maps fill up the autocomplete-list of /imagemap place, which makes finding maps you really need harder.
My idea would be to add a command /imagemap remove , which hides this map from the autocomplete-list, but doesn't delete the map itself. There should also be /imagemap restore to re-enable hidden maps. And it would be great if /imagemap list could show, whether a map is hidden or not.

With this change, I would be able to clean up our ImageMap-maps without deleting the unwanted maps completely.