Allow for copy/paste of multiple rows+columns

I'd like to see essentially the exact same thing as this person is requesting here: https://github.com/adazzle/react-data-grid/issues/86

> I'd like to be able copy & paste a range of rows and columns, similar to what you can do in Excel at the moment.
>
> this could be copying between cell ranges on the same grid, between two separate grid instances, or from somewhere off-grid (e.g. Excel).
>
> https://cloud.githubusercontent.com/assets/2393035/10424809/3fc45d68-70ca-11e5-907a-38d63878d50a.gif

Would this be possible to do with this component? If so it would be awesome!

Thanks!