As requirements change, you can deactivate an active or pending job in the rendering queue, or reverse the process and restart jobs that are inactive.
When you deactivate a job, the servers assigned to the job either drop the frame they are rendering or finish writing the frame, depending on where they are in the rendering process. The next pending job becomes active and begins to render.
You can reactivate a suspended job, or a job that was submitted as Initially Suspended from the Network Job Assignment dialog.
To deactivate a job:
If necessary, click the toolbar Refresh button to view the new queue status.
To activate a suspended job:
The Activate button on the toolbar becomes active.
The job becomes either started or active in the queue, depending on whether or not another job is currently rendering and whether or not any of the job's frames have already rendered.