Moving the camera
Moving the camera is simple with Rotato.
How to do it
Rotate the camera
Click and drag anywhere on the 3D mockup scene. Mouse: Click and drag with the left mouse button.
Zoom in and out
Trackpad: Use two fingers to scroll. Mouse: Scroll the mouse wheel. Alternatively hold down the scroll wheel and move the mouse up and down.
Pan the camera
Trackpad: Drag with two fingers. Mouse: Click and drag with the right mouse button.