How to use Teststack.white with multiple monitors

Question

I have 3 monitors, but white says:

[Warn - 10:59:24 AM] 'TestStack.White.UIItems.UIItem' Window with title: MYWINDOW whose dimensions are: 0,0,4492,1080, is not contained completely on the desktop 0,0,1920,1080. UI actions on window needing mouse would not work in area not falling under the desktop 

Can teststack.white be used on multiple monitors? If it is not available, I would like to contribute to the white project (I think its open source) and add this functionality, but we will see.

Thanks.