Feature Request: scale ability for vncterm

Hi all, really good job!

I would like to see a "scale" in the toolbar of vncterm windows (to scale at 25%, 50%, 75%, etc.)
I found myself dealing with extra-large windows when working with KVM.

For some strange reasons I have some virtual machines running on KVM and screen are too large (i.e 1440x900) for my laptop (1366x768)
when I work from linux there's no problem: I can move window.
But when working from Windows is a nightmare, I can't see bottom of vncterm screen.

Scaling vncterm content (as you can do in tightvnc or ultravnc viewers) would improve user experience's when working with KVM virtual machines.

thanks!!