litesvcs
In that 'Responsive Layout' tab, you can drag&drop to change the width of each position. From your screenshot, footer-1, footer-2, footer-3 will show on 1 row which equals to 12 grids in Bootstrap Grid system. The width of each module in these positions will be equivalent to the number of grids it takes. And this width will depend on the size of the container set in template.
Let me know how you want it should be so I can help.
P/s: I can't access backend of your site with provided info.
Regards