How can I zoom within Inspect?

Zoom in on your artboard/screen by using the magnifying glass tool at the top of your screen, or by using the +/- buttons at the top right. When you select the magnifying glass, the default behavior is to zoom in; use Alt+Click to zoom out. 

Pressing the escape key will deactivate the tool and bring you back to the Selector tool.

Getting Started: Inspect (