Is it possible to modify the action function on the divi forms module. I dont want it globally set but need it set for each type of form. In this way the data from the form will post back to a automation tool like Act-on. I would also like to use bloom for better looking forms control but would need the same functionality upon action with a url link to the postback page.
I am not sure what exact modification you want to do, But I can suggest you where to find the code for contact form.
Go to /wp-content/themes/Divi/includes/builder
Here you can found the main-modules.php, Now make the changes accordingly in this file.