There are many different ways to zoom in MacDraft. You can use the Z key as a shortcut to select the Zoom tool,t, you can type in a % value, you can use short keys cmd + 2/3 or you can use a zoom frame. Using a zoom frame allows you to draw a frame around the data you want to zoom in on and that data will now fit the drawing window. This allows you to be very specific on where you are zooming. Simply select the Zoom tool or press the Z key and click and drag out a rectangular window. As you release the mouse the document will zoom to the data within that window.