Trying to eliminate the need to click on related records in a map to view structures and attachments related to a specific transmission structure. Is this possible? If not, Esri software continues to be a PITA, if so, how?
Yes this is possible with the Pro SDK.
I downloaded 2019 Visual Studio and do not see the ArcGIS Pro SDK under the online extensions and updates. Can this be accessed with the community version?
Yes you can use the community version, but I needs be 2015 or 2017 I believe.
Retrieving data ...