Replace the Standard LifterLMS “Mark Complete” Button with a Formidable Form Submission Instead Require your learners to submit a Formidable Form before they can mark a lesson as complete. Example form submissions might include: Collecting a wide variety of information or uploads from students Advanced forms where you want the user to fill out and submit a complex form to complete a lesson Online or in-person event registration Selling products from within lessons Surveys Collecting testimonials And much, much more