The Settings Option
You can specify the terminal emulation settings for the current connection
by choosing the Settings item on the Options menu from the main window.
Also, you can click the Settings button in the Telnet Connect Host
dialog box where you can also make some initial settings for your session
(that are described in subsection Details of a Session in section
Starting and Terminating Telnet).
The Telnet Settings window presents you with a dialog of six tabs
that allow you to view and modify the current terminal emulation settings: