I want to modyfy my post edit/update window for Wordpress Post.
I use ACF and add some new fields.
In this window where I create new post or edit it I need some small modification, I want to add rectangle html div, with small script js. I attached screen for example.
Js on click on this div display alert different for new post, and different for existing post with PostId.
I need help, and need to know how to do it, so I can't give you access to my ftp server, but i will follow your modification instruction.