Key regeneration in SSH version 2‏

Hi

Is there a way to configure the OpenSSH sshd to regenerate keys at a certain time interval or after a certain number of uploaded/downloaded bytes?

I'm looking for something similar to KeyRegenerationInterval but that works with SSH ver 2.

Some implementations seems to use 1 hour or 1GB data, whichever comes first, as an interval. For a debugging purpose I would need to set this interval to be much shorter.