Managing webmaster authorizations
Each webmaster account you add to your site can be controlled from your site manager: you choose which content they can manage, and which content they can’t.
By default, when you add a new webmaster their account will be enabled automatically, and they’ll have full rights to all site content.
To change their authorizations, edit them from the Site > Site webmasters menu by clicking the Manage authorizations link to the right of their username of the webmaster whose authorizations you'd like to view or edit.
Authorizations you can apply to each site webmaster fall under 2 categories: site content, and general site settings.