Joomshaper still has not got around to create a complete documentation for Page Builder. The existing documentation on addons is so skimpy it is practically useless. Each of the these should have a live demo that shows its functionality. Checkout Warptheme Extra Addons which works with Page Builder where they have a quick install version that shows live demo of each addon. Publishing demos actually proves that the product has been tested for production readiness.
When will this happem?