Hi Stella. Gravity Wiz has a plugin called Populate Anything, which has a feature called “Live Merge Tags”. Here’s a description of the feature:
Live Merge Tags.
Add auto-updating merge tags anywhere inside your form (e.g. labels, descriptions, choices, values, HTML content).
I believe that is what you are looking for. I recommend contacting Gravity Wiz for assistance if that’s something you want to get more information about. Thank you.
As Chris suggested, Live Merge tags would work for what you’re trying to do. You can use the Live Merge tags to get the selected radio button options and insert them in an HTML Field. You’ll need to get our GP Populate Anything Perk to use this feature. If you have any questions, you can contact us via our presales forms.