The SQL Server Agent tree on SSMS can not be seen

I am trying to give a user access to the SQL Server JOBs from the Managment Studio, however, even though I granted him the corresponding permissions he still does not see the SQL Server Agent Tree.

I am using the following script:

**USE msdb GO IF NOT EXISTS(SELECT name FROM sys.database_principals WHERE name = 'Test') BEGIN CREATE USER test FROM LOGIN test END GO ALTER ROLE SQLAgentUserRole ADD MEMBER test GO

GRANT ALTER ON ROLE::[SQLAgentOperatorRole] to test

use msdb go ALTER ROLE SQLAgentOperatorRole ADD MEMBER test GO**

Any idea why is this happened?