In the Appliance context, you can change configurations in a specific appliance like Branch, Controller, etc. You can view merged values from the deployment template and the device attributes.
Note: CenturyLink discourages using the Appliance context to make changes directly to an appliance as it will then be out of sync with the template associated to that appliance. This could cause additional issues in the future. Please consult with the SD-WAN support team with any questions.