I'm searching for hours to get an answer to this simple question but I'm not able to get any information about this. The ninja form will be used to book a room in a hotel. I have a custom post type "Rooms" that holds the data for the room (acf), eg. single or double room, equipment features, etc. I want to be able to create a bunch of form elements (e.g. a select for single or double room) dynamically out of the data of the different rooms (custom post type fields) and add the dynamically created fields to an existing ninja form.
I can't use placeholder fields in the form and replace the values because the number of different rooms is not always the same. If I add a new room (as a new content page) the form should automatically list that new room without touching the form builder.
Getting the room values is no problem, I just can't find any documentation for adding custom generated fields to an existing form.
Is there a way to accomplish this?