1. Launch the Site Builder tool from your cPanel.
2. Enabling Tablet Version
2.1 To enable Tablet version of your website, click on the Tablet icon at the top menu.
2.2 Click on 'Tablet version OFF X' to turn it on.
3. Enabling Phone Version
3.1 To enable Phone version of your website, click on the Phone icon at the top menu.
3.2 Click on 'Phone version OFF X' to turn it on.
To hide, simply drag the element to the 'Trash Bin' box on the right side.
Or just hover your mouse to the widget/element, click on the 'Pencil' icon and choose Lock. To show, click on the element in the 'Trash Bin' box.
To center align all your content in your site's mobile version, simply click on the align center icon.