Fortunately, @DanThomas already wrote a macro some years ago that can show recently executed macros more easily and efficiently than parsing the log:
I also wrote a macro a few years ago myself back when KM 8 was still new that piggybacks off Dan's work to show a further simplified list prompt of recently executed macros and lets you jump back to the editor to quickly modify whichever one you select. I still use it to this day:
You could easily modify it to run a macro chosen from the list instead of editing it, or to choose between them by, say, holding down a modifier key when making a selection.