AGSL GeoDiscovery is an online geoportal that provides discovery and access to geospatial data for American Geographical Society Library patrons including open and restricted data in AGSL collections as well as data harvested from the OpenGeoMetadata project.
Last week a new element was added to OGM Aardvark: gbl_displayNote_sm https://opengeometadata.org/docs/ogm-aardvark/display-note
The intension of this new field is to capture item or collection level end-user warnings or notes: https://github.com/geoblacklight/geoblacklight/issues/1274
Official support for this new field is not in GBL yet, but you can begin to populate your docs with this field now.