Hover your mouse pointer over the widget you want to duplicate.
Click the more options icon in the top right corner to bring up the widget options. Click Duplicate.
If you're using our old-style dashboards, click Make a copy and choose Copy to this dashboard in the pop-up window.
Your copied widget will now appear on your dashboard beside its original.
It's not currently possible to to copy a widget from one dashboard to another. We understand that this a useful and important feature, and it's on our roadmap.