Move and CenterMarker Module
Click and drag to move.
Zoom Module
Slide up or down to zoom.
Points Mouse Module
Click on grid to add and click point to remove.
Mouse recommended, but touch will work on some devices.
Points Touch Module
Supports up to five fingers, using average to decide where point goes.
For touch screen only, also note that some devices don't allow touch.
MENU Module
Should work with all modules