You can send zephyrgrams with different ``zephyr signatures,'' or ``zsigs.'' Your zsig is on the line of a zephyrgram that says ``From: zsig username''. Unless you have changed it, your zsig will be your name as it is listed in your finger information. You can change it to read just about anything you want by using the command
zctl set zwrite-signature 'mysig'
which will change your zsig permanently until you use the command again. You can also use
zwrite -s 'mysig' username
to send a zephyrgram with the zsig mysig, for only that one zephyrgram.