Yea, that line in the docs is why I was trying to do it with add_row in the first place. Although it wasn’t until I read the update_field docs that I knew to use the "acf_fc_layout" keys and finally got it working for one row. The more I looked at add_row source the more I thought it wouldn’t do what it said it did, but for some reason I didn’t ever try update_field. Thanks for waking me up to it, it works like a charm. I’ll file a ticket to update the docs.
