We regularly add new features in beta and make them available to the Cloze community. If you see a ★ symbol on a Knowledge Base entry it is a feature that is currently in beta.

You'll also see text like this at the top of Knowledge Base entries...

This feature is currently in beta. For access please contact support@cloze.com. 

If you would like to try any of these beta features please reach out to support@cloze.com and we'll enable them for you. 
Thanks for beta testing!