custom field – Give Ninja Forms access to a meta_key value from wp_postmeta

I am trying to create a Ninja Form as an event registration. Events Calendar has a registration form, but for various reasons it would be great to use Ninja Forms instead.

There’s an Events Calendar field in wp_postmeta called _tribe_events_zoom_join_url that has the metadata I need in the registration form – the event’s Zoom link.

Is it possible to give Ninja Forms access to that meta and use it as a “merge tag” in the form builder?