When using a single reference field in the CMS, the dropdown cannot be navigated by keyboard like a traditional dropdown (type to search, using arrow keys, tabbing to it to set focus). When this list gets long, scrolling through it becomes an onerous and tedious task. This would be made much more efficient if the same options from the multi-reference dropdown were available in the single reference dropdown: type to search, using arrow keys, tabbing to it to set focus.