Factory setting: Canvas Zoom in/out, Brush Zoom in/out , Scroll up/down
0 left rotate → Ctrl + = (Canvas Zoom out) / 0 left rotate → Ctrl + - (Canvas Zoom in)
1 left rotate → ] (Brush Zoom out) / 1 left rotate → [ (Brush Zoom in)
2 left rotate → Wheel Forward (Scroll up) / 2 left rotate →Wheel Backward (Scroll down)
You can also customize the dial function
For example
1 left rotate → Ctrl + Z (Undo) / 1 left rotate → Ctrl + Shift + Z (Redo)
The Dial can also be set to six separate functions.For example
0 left rotate → Left Mouse Button/ 0 left rotate → Left Double Click ,and so on.