The tool bar, located just below the menu bar, is a shortcut for the most-used commands.
The icons from left to right and top to bottom represent the following commands:
File/Exit 
File/New 
File/Open 
File/Close 
File/Close All 
File/Save 
File/Save All 
File/Properties 
View/Scroll Left 
View/Scroll 
View/Scroll Right 
View/Zoom In 
View/Zoom All 
View/Zoom Out 
View/Previous View 
View/Next View 
Edit/Undo 
Edit/Cut 
Edit/Copy 
Edit/Paste 
Edit/Delete 
Convert/Transform Active 
Convert/Convert Active 
Convert/Batch Convert 
Prompters/Prompter 
Prompters/Tape Loader 
Prompters/File Slicer 