The code you downloaded is displayed as a 3D model on the right side of the
application window.
To rotate the 3D model, move the mouse pointer to the display area of the 3D
model. Right-click and hold to move the mouse pointer. You can also use
additional buttons
.
To zoom the 3D model, use the mouse wheel or .
To move the model in the plane, use the left mouse button.
To turn on the grid, click on the button .
In order to turn off the grid, click on the button
.
Grid enabled by default.
You can rotate the model by holding down the right mouse button.