In order to Disable jobs from being submitted or Enable them if they are already Disabled:
Jobs that are disabled will appear as crossed out in the Layout View.
See Also
Controlling jobs in the Layout
Start a job now in the Job Layout
Monitor a job in the Job Layout
View a job's log file in the Job Layout
Abort a job
View a job's current state in the Job Layout
Restart a job now in the Job Layout
Recomplete a job now
Suspend a job
Resume a job
Start Rescheduling a job
Stop Reschuduling a job
Advance Start Time
View a job's Scheduled runs