Circle Button

The circle button has multiple features.

You can duplicate a stroke by holding down the circle and moving a selected stroke (works in both camera modes).

Hold down the circle with only the navigation cube enabled to rotate in increments of 45 degrees or to snap to a side of the navigation cube when clicking the arrows on the cube.

You can also snap to an orthographic side view by holding down the circle button and tapping towards the top, bottom, left or right of the screen (works only in free camera).