Cornerstone was developed by ThemeCo and is an ever evolving website tool. There are several new releases each year that continue to expand the functionality of the tool. We are providing a link to their knowledge base as an attempt to always have the latest information available for those that want it.
DO NOT post questions on their forum as they do not support our website. If you have questions on Cornerstone, please submit a support ticket to us.
Cornerstone knowledge base: Link