As mentioned with the new release you can now "Use Managed App Configuration with ArcGIS Enterprise" with Collector. It is great that we are now able to do this, but some guidance as to how would be more than helpful. Below is a screenshot from the Collector MDM settings. I tried to follow the instructions for the Explorer for ArcGIS MDM settings setting "portalURL" as my Key and my portal url as my string. did not work.
How do you do it?