Pan and Zoom Tool
The Pan and Zoom Tool allows the visible portion of the drawing to be moved with a Touch/Drag gesture combination for performing panning or zooming actions on an entire drawing rather than moving the objects residing on the Drawing Canvas.
Zoom Rectangle Tool
An additional Pan and Zoom option is made available when an extended Press is performed over the tool button.
The Zoom Rectangle Tool can be used to draw a rectangle over a portion of the Drawing Canvas to specify a precise zooming location.