Glad that was what you were looking for.
@peternlewis added this feature in version 9. Here is some more color that he indicated in May 2019, before the August 2019 release. So you can, also, use Spotlight to search macros using - title:Macro Name or kind:macro Macro Name. As I said before, I think the KM editor has to be open (whether active, hidden or minimized. I could be wrong about this because my Spotlight is always slow on my 2014 iMac.