Adding up time commitments + low energy vs focus hours

I’d love to have a way for the app to double-check that I haven’t overscheduled myself. Sunsama for example adds up the time and meeting commitments for the day and puts up a red flag if I go over 8 total. (And I can adjust the red flag to 6 if that’s better for me). I like the autoscheduler and to dos here a little better, but I’d also like to be able to specify “low energy” hours vs. “focus” hours on the calendar and have the autoscheduler be able to match those with labeled tasks. My brain won’t focus in the same way at 4 pm!