The suggestion from Robin S worked for me. On a Mac using the magic mouse if I hold down the space bar and use the single finger scroll action I can zoom in or out. The space bar also seems to allow you to click and move the canvas.
The suggestion from Robin S worked for me. On a Mac using the magic mouse if I hold down the space bar and use the single finger scroll action I can zoom in or out. The space bar also seems to allow you to click and move the canvas.