Thanks, I've reviewed this documentation, the thing that worries me is the following:
Note: When binding an existing network to a template, its current configuration will be lost and it will begin using the template configuration.
I am trying to avoid losing the configuration of my existing networks. Each existing network configuration is unique. Yes, I understand that I can apply local overrrides, but it seems the configuration will lost as soon as bind the existing network to the template. In one of my networks I have 100+ switches and 900+ wireless access points, and a MX security appliance. Can't afford to lose these configurations...