I know that the array feature in the properties panel is still experimental, but it was introduced almost 2 years ago.
When I try to use the example from here, it will show up the button for adding new content as expected. Now when I try to add new content by hitting the button, it does absolutely nothing (except the click animation). When I also take a look in the logs, I get nothing about it.
Did someone had the same experience or is this feature out of date?
Thank you in advance.