I used ArcCatalog to create a feature with two related tables, that I then uploaded to AGOL.
I now need to add a third related table. Is there a way of doing that on the existing feature; or, would I need create it in ArcCatalog and upload it to AGOL again?
Hoping there's a way to add it to the existing feature, since it's currently in use, and would be a lot of work to change all the products using this feature (maps, apps, dashboards, Survey123 forms, etc.)