Multiple windows?

Is there a way to have multiple windows open in Graph? With the ability to create multiple functions that interact but which may have significantly different x and y scales, it would be helpful if there was a way to assign them to more than one window with scales set accordingly. Of course, multiple instances of Graph can be run and tiled on the screen, but they run independently so their functions won't interact at all.

If that's not possible, would it be difficult to add? We'd be happy to help cover the costs for the time to do so.

Many thanks again!