Quha Zono 2 has two built-in centering possibilities. You can use a gesture to activate the centering or alternatively program an external switch for it.
Also, readjusting the mouse by pushing the mouse cursor off screen is a standard way of repositioning the mouse cursor. If you notice your head is not in a comfortable position when the cursor is in the middle of the screen, turn your head so that the cursor moves to the edge of the screen and beyond. The amount of head movement needed depends on the mouse speed settings and you’ll quickly learn to reposition the cursor by experimenting. The repositioning movement corresponds to lifting and moving a table mouse when it is near a table edge. As the Quha Zono 2 doesn’t use a fixed reference point or position to operate, sometimes it is necessary to make the repositioning movement.