I would like to be able to modify the network configuration of an AWS ECS service. The interface has "Allowed VPC", "Allowed subnets", "Security Groups", and "Auto-assign public IP" at the top of the "Configure network" screen. However they cannot be modified. We have been using a common security group for some of the services. When creating one of the services we missed assigning the security group so a new one was created. This seems like something I should be able to go back and correct.