Time Slot: arrange tasks to stacking starting time, not all at same time,

This is a very good idea. I'd suggest that whatever task is dropped in first just be scheduled first in accordance with its estimated duration, and the next one start right after that duration ends, etc. Then we could drag and drop them into an order that made sense and have those times automatically end. Because I work very well with a timer keeping me on track, I'd love to have the focus timer you'll some day add (😊) walk me through those: eg, the 15min timer for "Answer Email" gives me an alert when it's time to shift to 30min of "Organizing today's meeting," and on to the next until that time slot is complete.