Earlier quoted context omitted.
By scale limiting you mean showing you the scales? It's a setting in the piano roll which highlights the notes in the scale you select. Alternatively showing you which scale you've placed notes in if you've made something yourself.
I mean scale limiting as in restricting to a scale. The highlighting was all I could find in FL Studio. Reaper has it in the form of scale snapping. Ableton starts with highlighting, but can fold a clip down to only show notes in the scale. Bitwig doesn't have it at all and, last I checked, broke the only workaround. The contempt shown for people who can't remember scales on DAW forums suggests most developers don't…
Ok I see what you mean. I haven't really frequented any DAW communities though. The hostility to people not already good sounds like a shame. I certainly don't know scales by heart like that either. So even highlighting helps.