Allow Authors to Preview Blogs

I develop the blogs based on input from various authors, the author do not post to the website. The authors are assigned to a "blogger" usergroup (a child of Editor).

How can I assign viewing rights for Previewing the blogs that I create. It seems to work if they have Super Administrator rights but that's not feasible. I have checked the EasyBlog ACL but cannot seem to find the appropriate setting.

thanks,
Randy