At the moment you can use the ViewMap and map the control templates for the comments controls:
- Master view type: Telerik.Sitefinity.Modules.GenericContent.Web.UI.Views.CommentsMasterView.
- Detail view type: Telerik.Sitefinity.Modules.GenericContent.Web.UI.Views.CommentsDetailsView
Templates are attached. From there you can modify the HtmlField to fit your needs. We are working on the feature that will allow you to configure the RadEditor instances in all controls separately or globally.
the Telerik team
Do you want to have your say in the Sitefinity development roadmap? Do you want to know when a feature you requested is added or when a bug fixed? Explore the Telerik Public Issue Tracking
system and vote to affect the priority of the items