Zoom - Press 'Ctrl' key then click and drag.
Rotate - Click and drag.
Move Left/Right - Press 'Shift' key then click and drag.
Source: 3D Studio MAX 3.1 "World Creating Toolkit"
Stream file size: 437 (with textures)
Copyrights: Copyright (c) 2000 Discreet (formerly Kinetix, Inc).