4a6d687d53
There was no convenient way for an add-on to show it's "user" key-map items in the preferences, "user" meaning the key-map item which is edited in the key-map editor, not the original key-map item created in `wm.keyconfigs.addon`. Add a method to key-maps to lookup a user key-map item from an add-on key-map & key-map-item. Ref !134830