WebTechGlobal on "Dashboard Layout on a Plugin Admin Page"

Hello Wordpress community,

I have a two column postbox layout in CSV 2 POST 8.1.3 but it is not flexible enough.

Does anyone have an example plugin that uses a 3 column layout like on the dashboard?

I'd especially like to make use of the full-width box for display graphs and videos. I know it is simple to add such a box to any page but I want it to be part of the postboxes layout and it seems the full width box is 4 of 4 container divs.

Version 8.1.3 has not been released. TablePress offers a great example of 2 column postboxes layout.

Thanks
Ryan