I dont understand how that would improve things? Right now you dont waste movement AP.
If you can move 13m for 2 AP you can split it into 10m for 2AP and 3m for 0AP.
Why would i want a waypoint system for that when i can do it myself ?
This is what I thought as well. The OP claims the move took 3AP, but in my experience, this isn't the case. If you move some distance for instance, there's often some distance that you can move again, after stopping, that costs only 0 AP.
So, I'm not sure that I buy the premise that moving more than once burns AP.