Please enable identity management in ArcGIS Monitor to leverage ArcGIS Enterprise Portal user store. Our organization is about to enable viewer and, possibly, manager permissions to a expanded group within our IT department and our end user department GIS leaders. Our IT Enterprise security model discourages any authentication that is not named user based and validated with MFA. User name and password use is limited by policy. Since the ArcGIS Portal identity management component is already approved for our use, this would be the ideal mechanism to leverage extending this component to ArcGIS Monitor.