Adding NOTES field to calendar

It would be AMAZING if we could add calendar NOTES to these calendar boxes, instead of just cleaning tasks - like holidays, maid on vacation, 2pm inspection, furniture delivery, etc. There could be a NOTES indicator (a red dot) and the note would pop-up on mouse hover. The Minimum length of stay pop-up is redundant because it’s already clear from the rate/min numbers in each box. But NOTES would solve so many scheduling issues.

(I saw a suggestion to show the booking notes field in the full calendar — I don’t mean notes related to a specific booking, but rather, notes related to a specific DAY and LISTING. The booking notes field serves a different function.)