Movement planning in initiative mode

As a player, it would be a minor timesaver if I could prepare my movements in advance during another user’s turn when in initiative mode, preferably something non-intrusive/user-side only.

For example, a way of creating a local 3D waypoint I can snap my mini to during actual movement, or being able to move around a ‘ghost’ of my mini to prepare my movement with that I can ‘replay’ the movement of on my actual turn.

The reason this comes up is we were doing a midair/flying-heavy combat, and while I knew where I was trying to approach in advance of my turn, I still needed to play around with the movement/get the altitude right on my actual turn, ultimately.

Obviously the ruler gets you partway there with being able to measure in advance, but you still have to move yourself to the exact same destination position manually.