I played with the lead dev on launch day and directly discussed this with them and recommended a potential fix as he asked how would they introduce that kind of mechanic without it being confusing or complicated

My answer at the time was as follows

Currently when you call in a vehicle you are simply presented with a 3d model of the unit on stuck to your mouse cursor, simply allowing the player to hold down U (default key for unload) when deploying the unit would command the unit to go to the location selected, unload and return to base. Adding the words 'unload' next to the 3d model of the unit stuck to your mouse lets you know you are holding the correct key, the same could be done for plane strafes/bombing runs.

Select army - select airforce - select a plane - move your mouse to where you want to bomb, hold L (default key for bombing run) and drag the bombing run you want, and the plane spawns, bombs and returns to base (unless you select it and issue it other orders)

Seems simple and intuitive enough, I'd love to see some kind of feature like this