Most of the interesting features are controlled from the menu which appears at the top of most of the windows.
File Menu Options: The File menu mainly affects the lexicon files in a general sense. The options are very similar to those you would find on any other program.
View Menu Options: The View menu allows you to open and close important windows which perform the main functions of Penfriend.
Lexicon Pop-up Menu Options: If you press the right hand mouse button while pointing at a word in the Lexicon Window, a small menu will appear allowing you to edit the lexicon. A similar but shorter menu operates in the Abbreviation window.