in Apple Mail, behavior after marking a message as Spam

Am using Mail 4.5 on OS 10.6.8. In the INbox, if I mark a mail as spam using the SpamSieve keyboard command, the message goes to Spam mailbox but the focus returns to the very top of the Inbox mail queue. Is there a way to autoreturn the focus to the next message, that is, the message immediately following the message I just marked as spam?

I set up my Inbox to display new messages toward the bottom, so being brought all the way to the top each time I mark a spam message results in extra work.

There’s currently no way to do this, but I’m trying to find one.