How to embed custom fields into Hosted Website ?

I am trying to embed some video tours on the individual property pages in the "Intro" area.  Since there's different video for each of our properties, I thought to add the < iframe > code to a custom field, and thought I could add the {custom field name} into the "Intro" html area.  I know it works for regular fields like {MYCOFULL}.  But when I try to do that all i get is literally the text "{custom field name}"

How can I do this ?  Or can I do an if/then script in the "Intro" so that it pulls the correct iframe video for each property?

Thanks!

Unfortunately, you cannot - custom fields don't work in the website fields, as you discovered.

You'll need to embed all the videos on a special custom page:

https://www.ownerrez.com/support/articles/video-page