As in interaction in webinars bring more sales adding triggers by the video time spent in minutes and seconds is highly needed. (Evergreen and automated videos) In live webinars you can trigger them manually. Please add your ideas and existing tools/features from others, we can add in comments.

As WooCommerce has got everything from invoicing and payment gateways, lets create a product type called webinar inside WooCommerce and let attendees easily buy webinar via their favorite payment processor like PayPal, Molly, Bank payment, ...