Staggeringly great - thanks again, @brookter!! I’ll check out Terpstra’s site, too.
I already threw a dozen shortcuts into my DefaultKeyBinding.dict file, and am cookin’ with gas 
; took some time to test them in a couple of apps - some work in some apps, others in others is what it looks like. But I have several going in Tinderbox, such as indent/outdent lines, etc. SO great.