Parsing shortcode in Element

Hi,

I’m trying to build a radar chart with data from a Piotnet built multi-step form and passing them to the chart with a shortcode before submitting the form. However, shortcode data are not displayed in the chart.

I realize that the shortcode should provide a pair key/value to be properly parsed. Could you confirm this point or give a suggestion on how the shortcode must work?

Thank you so much.