Stitch Zoom in

I apologize in advance if this was asked before. When I scan front and back of the house, the floorplan will resize to very small size so outside boundary can fit in screen when you are working in Stitch. Is there anyway I can zoom in? TIA

on my macbook I swipe with 2 fingers to zoom, and use arrow keys to move around

If you use a mouse with a scroll wheel, the wheel lets you zoom in and out. It’s very handy. I wouldn’t edit without one.