If I need to have this trigger take effect on 4 logins would I just add the additional logins as such below.

USE master;

GO

CREATE TRIGGER connection_limit_trigger

ON ALL SERVER WITH EXECUTE AS 'login_test'

FOR LOGON

AS

BEGIN

IF ORIGINAL_LOGIN()= 'login_test' OR 'login_test2' OR 'login_test3' OR 'login_test4'

(SELECT COUNT(*) FROM sys.dm_exec_sessions

WHERE is_user_process = 1 AND

original_login_name = 'login_test') > 3

ROLLBACK;

END;