Is there a way to set the equivalent of the "-alt-grab" switch in KVM inside libvirt? Everything else I neeeded to do in libvirt I have figured out but this still has me stumped.

I have gone through the docs on libvirt.org but am hoping I either missed something or that there is a work around. I use <crtl><alt> for desktop switching and such so it is a little annoying to go in and out of mouse grab instead of switching screens.