Last drop in first, so your first drop is nearest the doors. Tap each drop as it goes on the van.

Drag a drop by its ≡ handle or use ▲ ▼, then Save order. Reverse flips the drops still to do. 🗑 takes a drop off your round straight away.

It goes on your run and the office sees it in the planner.

Numbered in the order you're doing them. Green = done.