Unity version 2018.3.9f1

Control the camera with 'wasd' or directional keys; up and down move the camera, left and right rotate the camera.

The button labeled 'UI Swap' changes the canvas from the screen to world. The World canvas is located on a cube in the gamespace. The three bars from top to bottom control X, Y, and Z scale respectively for the red cube in the middle of the gamespace. The toggle locks the sliders, which will snap toghther when first interacted with when on.