You can modify existing rules when these rules do not meet your needs.
To modify a role-based access control rule:
Choose Device Settings > Security > Role Based Access Control. The Configure Role Based Access Control Settings dialog appears.
To modify the IPv4 firewall rules, click the IPv4 tab. To modify the IPv6 firewall rules, click the IPv6 tab.
Ensure the "Enable Role Based Access Control for IPv4" checkbox is selected on the IPv4 tab, or the "Enable Role Based Access Control for IPv6" checkbox is selected on the IPv6 tab.
Select the rule to be modified in the rules list.
Click Edit or double-click the rule. The Edit Rule dialog appears.