Once EDGE_LOC is selected, the Failover Cache Groups section will appear at the bottom of the page. If you are editing an existing Cache Group, then the current Failovers will be listed. If creating a new Cache Group, the Fallback to Geo Failover box will default to be checked.
To add a new Failover to the list, select the “Add Failover Cache Group” drop down and choose which Cache Group you would like. While in the drop down, you can also type in order to search.
The order of the Failovers is important. If you want to reorder the Failovers, you can drag and drop them into a new position. A red line will appear to show where the Failover will be dropped.
To remove a Failover, click the trash can symbol on the right hand side of the list.