The pop-up CCSO addressing form is largely self-documenting. Online help can be obtained using the HELP key or by entering CTRL/G. The cursor keys are used to move from field to field or within fields; the currently active field is highlighted and a description of the field shown towards the bottom of the screen.
Use the FIND key to search for a directory entry matching the information supplied to the form. If any matches are found, a selection menu will be presented from which to choose the desired match. While in a selection menu, the question mark key, ?, can be used to request detailed information on the currently highlighted menu entry.
When a selection has been made from the CCSO database, the form constructs an e-mail address for the selected entry. When you exit the form with CTRL/Z, the e-mail addresses for any selections you have made will be fed to your user agent and used to address your mail message.