Allow User Role To Schedule Content As Different User I am creating a "submitter" user role which should be allowed to post articles as different users - what permission do I need to set for this on the "Permission" page under "People" to grant access to the "author" field?

If thats not possible is there a module for it?
That would be Administer Content. Be careful with this, because the permission provides a lot more than simply control over the node Author identity.

The alternative would be the Masquerade module, which would allow the user to pretend they were a different user, and post content as that user. A little more involved for the posting user, but safer for your site.