Will that add-on be updated for V4 sometime Elliot?
For Ninja Forms (or Gravity in V4), another way to do this is to just provide an ACF text field for someone to enter a form ID and then output it into a shortcode in your templates. If the shortcode has parameters (like display title yes/no) you can also set up those values as ACF fields as well.
I guess you could also use an ACF “Select” Field Type as well, but you’d have to manually add options to represent each new form, so it wouldn’t be future proof if the client can create new forms.
