Set taxonomies for all sites on Multi Site

Is it possible to set the custom taxonomy options for all sites on a multi site install?

I have set up taxonomies using Custom Press on the super admin account. The taxonomy name (say Author) shows up but I have to "add" the options (Hemingway, Dickens, etc.).

I was hoping to have all sub sites choose from a pre selected set of Authors and restrict adding new Authors using the Rolescoper plugin.