To zoom in and out,

       Click Magnify mode in the toolbar, then click in the drawing area. Shift-click or right-click to zoom out. The spot where you clicked will become the center of the enlarged or reduced area. 

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       Click Magnify mode in the toolbar, then click and drag in the drawing area to define a box. The contents of the box will fill up the drawing area.

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       Choose a magnification percentage from the drop-down list, or type a new number in the box and press Tab or Enter.

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       Click the Scale to Fit button in the toolbar or choose Scale to Fit from the Layout menu. The magnification will change so that all the visible plants fit in the drawing area.

To scroll,

       Click Scroll mode in the toolbar, then click and drag in the drawing area.

Created with the Personal Edition of HelpNDoc: Create iPhone web-based documentation