FFVIEWER uses taskbar buttons to perform the following operations:

Open File
Load Infobox Document                (right-click to select Select Mail)
Select Mail                (right-click to select Load Infobox Document)
Save Wizard
Cropping Documents
Print
Move/Copy                (right-click to select Fax/Email Send)
Fax/E-Mail Send                (right-click to select Move/Copy)
Delete Document
Zoom Size1 2 3 4
Black/White Mode
Flip Image
Rotate Image
Settings Menu
File Information