I've been talking to a client about Zimbra and will be using them as a beta site. One problem they see with using the AJAX client is that they need to be able to use more than one signature ie. be able to pick between two different signatures depending on the email they are sending. I can't see a way to do this, is it possible? If not can it be added?

I imagine this would also be a useful feature once the ability to send from different accounts is implemented.