So there’s nothing in ACF that will take a URL create the code to open it in a modal. This is where ACF stops and your coding begins. Creating custom code that will do this is complicated and not something that can be easily put together. We’re all just users here. There may be someone else that has code readily available to share, but I don’t because this is not something that I’ve ever done before, I have not had the need. I have provided you with some links above that will get you started, but I can’t do the coding for you because it’s not simple and it will take a lot of time to complete.
