I want to create a custom hidden field in the advanced tab. If this field ist selected, the form should automatically add userinformation to the form like: user_id = userId, user_email = user-mail, eventanmeldung = 1
I need it as a button, as there will be a couple of forms maintained by a content guy. He won’t be able to create each time 3 fields with populated input manually.
If the addition of 3 fields is part of starting a new form, you could use the form Import/Export feature. Create a form with just those 3 fields and export it to a separate .json file. When the content staff is ready to start a new form import that .json file and they’ll have all the defaults you want in place.