Online Documentation for SQL Administrator for SQL Server
Proxy Editor
Proxy Editor allows you to define proxy properties. It opens automatically when you create a new proxy and is available on editing an existing one.
A SQL Server Agent proxy manages security for job steps that involve subsystems other than the Transact-SQL subsystem. Each proxy corresponds to a security credential. A proxy may have access to any number of subsystems.
The list of Proxy Editor tabs is displayed on the navigation bar:
