How to add multi select checkbox at the top of the listview Visual Studio LightSwitch

Question

I am using Visual Studio LightSwitch 2015

I am having a ListView in the Screen as below when I run the project

Countries View

Design View is as below

Countries Design View

How can I add checkbox here in design view and on click of it how to select/deselect the checkboxes in the ListView?

Any help would be greatly appreciated.