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After loading the object on the screen, in its lower middle part there are three buttons that serve to MOVE, ROTATE and SCALE.
MOVE: This is the default action when loading the object on the screen. Center the cursor or finger right in the middle of the object and drag it anywhere within the perceived limits.
ROTATE: It is represented as a control in the form of a circle around the object, and indicates that inside it we can click and drag to rotate in any direction, the object outside that limit will not have any effect.
SCALE: It is represented as a control in the form of lines and cubes called axes. To scale uniformly, click right in the center of the object and gently slide the cursor or finger outwards from it to enlarge and reduce its size on the screen.