By default internal users can access data for all artists. With the introduction of a new security feature, you can limit user access to a selection of artists.
A user with access to system settings finds the new "Access to artist data" panel in the edit page of an internal user. By default the user will have access to data for all artists on the agency roster.
By clicking the "New" button, artists can be assigned to the user. The user in the example can only access shows, contracts and invoices for Jonathan Black and The Green Oranges.