UI Overview
The UI can be divided into three zones: Left bar, Canvas, Right bar.
Left bar : displays the project structure;
Canvas : displays the model;
Right bar : is the Properties Panel, displays the settings of what is currently selected. If you have nothing selected, you will see the settings for the canvas. By default, nothing is selected, so the settings related to the canvas are displayed. If you select any object, the right bar will show its settings.
Basic Operation
Rotate : left-click and drag your mouse cursor along the scene canvas.
Pan : right-click and drag your mouse cursor.
Zoom : scroll your mouse.