There are a number of “Page Builders” available for WordPress and your Campus. I personaly recommend
The ones I don’t like are
All of them can be added to any site as far as I know as long as the WordPress theme does NOT have custom hooks designed specifically to use that editor. ( Social Learner Theme I think is like this)
So if you want to add a page builder to a site you can do that just as a regular plugin. The key to this is to check the settings for the new page builder. By default it may only show up on WordPress Posts and Pages. It would shou up as an editing option on courses, lessons, topics, podcasts etc.