I created a new role "Blogger" and selected its capabilities. I discovered I didn't select everything I needed, so I'd like to edit that role. There doesn't seem to be a way to do this. Selecting the name in the role list just gives me the ability to change the name. When I select the capabilities tab, the default roles are listed at the bottom, and selecting one of them gives me the ability to change the capabilities of a default role.
Is there a way to change the capabilities of a role I created, or do I need to start over?