It is frustrating to adjust the collision mask on a mobile touch screen. If you miss the point, it causes the view to be dragged. It would be so much nicer if you needed to use 2 fingers to drag the view like the scene editor. Adding new points is just as frustrating.
An alternative would be to increase the size of the point or at least the touch hit box so it would be easier to choose a point.
Or maybe, a way to lock the view. So, accidentally touches didn’t move the view.