YANGDA VTOL drone was carrying out a package delivery mission like this: it took off with the package, flew to the delivery point, and landed there. At the delivery point, the operator will take the package out and press a button on the VTOL to enable it to fly back to the take-off point. The whole process was totally in autonomy.
Or the delivery VTOL drone can do it like this: lands on the delivery point, releases the package and then flies back to the take-off point.
Please check this video link to know more: https://www.youtube.com/watch?v=-EuLftx49r8&t=28s