Can the person viewing a desktop share stretch their client application window across two monitors?

Is it possible to have the client shared window stretch beyond one window width?

Specifically, I wish to take the window that appears when viewing a shared desktop and stretch it past my first monitor to take the whole width of both monitors. Currently my mouse stops at the border of the first monitor.

Is this expected behavior?

I am using win 7 professional 64 bit with the Lync client "Lync 2010 4.0.7577.4061".

-Dennis