Hello! I would like the property polygon's popup to include all the image links that are stored in the related table. I know I need to create an Arcade expression and have read many possible solutions in the community, but I need some guidance on which option is best and how to implement it. FeatureSetBy Relationship Name or some other option. I need some assistance with getting started (and finishing)
There are two other fields in the related table that describe the image that I would like to show with the image link - a guess above the link.

SSL-SSL
polygon:https://maps2.dcgis.dc.gov/dcgis/rest/services/DCGIS_DATA/Property_and_Land_WebMercator/MapServer/40
related table: https://maps2.dcgis.dc.gov/dcgis/rest/services/DCGIS_DATA/Property_and_Land_WebMercator/MapServer/69
Thank you!