So ...

As I said, the plugin is very user-friendly. Basically, works out of the box.

Go to Appearance => Widgets and drag the given widget into the targeted widget area. In the widget settings panel, you'll notice a new drop-down menu labeled "Width":

And that's it ... You can choose the desired width depending on how many widget columns you want in a row ... Also, you'll be able to upload different icons for each widget.

And once you have added the first row of your widget columns, you can easily start a new row of widgets within the same widget area, using the plugin's "Divider" widget:

OK. Now let's see the result ...