Basically, adding custom collision object types is really nice. But, when it comes time to refactoring and cleaning up a project, you start to notice there's really no way to actually search out for a particular object type. Or to even see if a custom type is being used by anything.

Not sure if it can be added to the current search parameters in the editor, so it filters out only those classes with that particular object type or if it could be added alongside the collision settings window, or maybe a new small editor window just for searching these out.

Either way, it beats going through 100's of actors each time just to see if anything is being used (why/why not), since deleting them only makes them WorldStatic.