Hello.
I’ve done something similar by working a lot on the code you can write a plugin or in functions.php.
I will summarize the steps I have done:
- I inserted a button (using jQuery) that shows a popup
- In this popup an iframe is loaded to create, for example, a new user
- When you click the “Publish” button the user is created and the popup closes automatically
- When closing the popup you have to update the list of users again (you must create using jQuery the same HTML code used by ACF)
I hope I have been helpful, I can not go into detail because every request can vary from case to case.
See you soon!
