You can edit the schedule portion of an existing conversion job or you can edit all aspects of the job.
To edit a virtual conversion job
On the Tasks page, click Run or Manage Virtual Conversions.
Select the name of a conversion job that you want to edit.
Do one of the following:
To change the schedule
On the toolbar, click Change Schedule.
Make changes to the conversion schedule, and then click OK.
To change the job settings
On the toolbar, click Edit Settings.
Make the changes you want in each wizard pane, and then click Finish.