Hi @werle77, please know Field Groups and Fields registered via php will not be visible/editable via the “Edit Field Groups” admin page.
However, you should be able to convert an ACF Field Group from PHP to ACF-JSON and from there you will be able to edit them just fine.
With that said, I would recommend checking a look at this article on how Convert an ACF Field Group from PHP to ACF-JSON as the basis of the same.
When you get some time, can you please test it out and let me know how it goes?
Thanks!
