Yes, there are is an End User Manual for RadEditor which you can download from here
You can find more information in the Documentation and Tutorials
section on Telerik.com.
the Telerik team
Do you want to have your say when we set our development plans?
Do you want to know when a feature you care about is added or when a bug fixed?
Telerik Public Issue Tracking
system and vote to affect the priority of the items.