Form processing to extract form data

Hello…I think HTML Forms is a very promising plugin (I searched several and found them too complex for non-developers).

I am using Divi theme and use wpdatatables. I need to create a table using shortcode where some of the shortcode parameters are taken from user input (HTML Forms).

The final step to produce a wpdatatables will be with this shortcode on the page that produces table with id=1 and take a parameter var1 set in the form completion process:

echo do_shortcode(“[wpdatatable id=1 var1=$Name]”);

I need to determine how var1 is set to a field capture from the form, say first-name.

Any guidance on how to set this up would be greatly appreciated!

Thanks