Capability question

Hi there, I wonder if anyone knows how to do this.

I have a progress meter plugin installed on a communal blog.
I’d like to give access to Manage –> Progress Meters on the dashboard, to the authors on the blog, but not to the rest of the manage admin panel.
That way they can add their own meters and update them when they need to.

I got Role/Capability Management installed and I’ve added a “Manage Progress Meters” but no dice, it doesn’t show up for the author roles.

Does anyone know what syntax this has to be? The documentation doesn’t say, and since this is a plugin that adds the option, I’m a bit stuck and would really appreciate if someone could point me in the right direction.