Managing Egress Firewall Rules
Once you have created egress firewall rules for a virtual network, you can manage them by going into the "Egress Firewall Rules" view for the specific network to which the rules apply. This view will display all of the rules that pertain.
To add a new rule, merely click on the "Add Egress Firewall Rule" and fill in the information.
To remove a rule, click on the to the far right of the target rule. You will be prompted to confirm your deletion.
Note: Once a rule has been created, it cannot be modified. If you wish to change a rule, you must delete the existing rule then recreate it with the changes.