Answer: A Sysop or other authorized user can create a user with limited privileges to use as a 'guest user'. To do this, create a user and go to the user authorizations page. Relevant authorizations include...
- Guest user (under the Misc section) - checking this checbox limits a user to the schedule and resource menus. Also, this user can not schedule.
- Limit user info on schedules (in the Scheduling section)
- Scheduling privileges (in the Scheduling section) - unchecking this will remove all scheduling privileges.
Be sure to save after your changes are complete.