How to unset a Cisco director setting?

Eugene,
As with a lot of Cisco OS config commands, the way to modify a setting is just removing the incorrect setting and adding the correct setting using the "no snmp-server host ..." and "snmp-server host ..." commands. That is the way to modify the entry for that type of setting.

Correct, the way to edit the setting is to remove them and then to readd them with the changes on them. You can also edit the overall configuration file and upload it to the switch but this should only be done by experienced users.

Thank you.