2D Viewer window | 
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Drag one finger over series preview bar  | 
Scroll series list.  | 
Drag one finger over image  | 
Tool chosen in the toolbar (browsing series by default).  | 
Two fingers over image  | 
Pinch to zoom, drag to pan image.  | 
Three fingers over image  | 
Drag up/down to change brightness, drag left/right to change contrast.  | 
Double tap on image  | 
Maximize/restore panel.  | 
3D Volume Rendering window | 
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Drag one finger over image  | 
Tool chosen in the toolbar (3D rotate by default).  | 
Two fingers over image  | 
Pinch to zoom, drag to pan image, rotate to roll image.  | 
Three fingers over image  | 
Drag up/down/left/right to change color/opacity.  | 
Double tap on image  | 
Toggle full-screen mode.  | 
3D MPR window | 
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Drag one finger over image  | 
Tool chosen in the toolbar (browse volume by default).  | 
Two fingers over image  | 
Pinch to zoom, drag to pan image, rotate to roll image.  | 
Three fingers over image  | 
Drag up/down/left/right to change window level and width (WL/WW).  | 
Four fingers over image  | 
Drag up/down to change slab thickness.  | 
Double tap on image  | 
Toggle full-screen mode.  |