Manage scheduled taksk via command-line?

[inCharge.co.uk]

Is it possible to manage Plesk scheduled tasks via a Plesk command-line utility?

I can't see a candidate in the manual:
http://download1.parallels.com/Plesk/Plesk8.6/Doc/en-US/plesk-8.6-win-cli/index.htm

Thanks,
Julian