Take one of them and move it with the arrow keys just a bit so you can access the other one, and when ready to upload move it back to the same spot.
But he just said he can't do it and he asked for any tips to make editing waypoints easier.
When you make new waypoint that would sit on the same place as other waypoint dont place it on this waypoint - place it near by. For example if you want to make saw move from up to down while changing speed - make all upper waypoints on the left side, and the lower ones on the right. Than set the time for all of them and after you do this place them on their proper position.
But you know - like i said i dont have this problem at all.