To delete a job
Right-click the job in the Navigator.
Select Delete from the pop-up menu. The Confirm Job Delete dialog box appears.
Click Delete. By default, only the job is deleted. You can also delete the job and all included projects by selecting the Delete Included Projects check box and then clicking Delete.
When using this option, be sure that related projects
are not used in other jobs as well, because this is not checked
automatically. Projects that are currently open for design (locked
by any user) are not affected.