custom field change only by admin
hi,
i bought acf privacy for to make a private custom field on my website.
i would like the user can't modifie a custom field and only the administrator can make that.
it will a text area.
in this custom field i would like put a url embed "http://:ww...."that only the administrator can change something inside.
Can you help me to understand how can i do that with this plugin.
thank you.