To create a job, click on the desired module folder on Jobs in the navigation tree.
Now, click on Add in the upper right program window, to start the Job Assistant.
Optionally, you can also enter a name and some notes for the Job under General.
Under Schedule you can specify the time of execution and the interval, if the job is supposed to be executed regularly.
Now, make more specific entries in the job Assistant of each corresponding tab of a module (e.g. O&O Defrag), such as the drive or the storage path needed for the its execution.
Optionally, you can make further specifications under General/Pre Job/Post Job.