Know that newly created GuestID will be all lower case. Don't be fooled by the creation UI. :-)
For research groups, use the Group's name (usually PI's last name) along with short name expressing something about its use. For instance, the non-Cornell institute person or people using the GuestID work at.
Password
Select the password generator in the UI. No need to record since user's-created password will override as part of activation process
Our "Guest-Only Group"
AS-Guest
Usually creating a GuestID for VPN access
Thus, don't forget to add the new GuestID to our Departmental VPN,