How do you backup your Rise content?

Just checking to see if there is an update to this question?

Is there a way to back up or export the rise project file?  It's okay if it can only be edited within the Rise browser-based application.  My question is regarding if the project files can be exported and stored externally, as a person may need to move them from Rise account to another and in the interim will need to store them externally from Articulate.