At the moment, WP Courseware itself does not include built-in webinar functionality. However, the course units are simply WordPress posts, so you can embed any content that you'd normally place within other WordPress posts or pages. Most webinar services have a free WordPress plugin to allow you to embed sessions into WordPress content. There are even free third-party plugins in the WordPress.org plugin repository such as this one which we've successfully used to embed Zoom calls in our own course content.