(Windows or Linux) You must be in the 3D viewer in order for these controls to take effect. Click anywhere in the 3D viewer to change focus Command Keystroke Result Zoom in Scroll wheel, + key, PgUp key Zooms the viewer in. Tip: to use the ‘Page Up’ key, make sure ‘Num Lock’ on your keyboard is off. Zoom out Scroll wheel, – key (both keyboard and numpad), PgDn key…