Hello
Firstly ensure you have the latest download of the Sophia template installed (1.0.2).
The preset loader allows you to load all template settings used in the example styles demonstrated on the template demo (eg.
http://www.joomla51.com/demo/0155/index.php/example-styles/example-styles-1). To use simply select the example style you wish to load from the dropdown in your screenshot and click
Load Preset. Note that all your template settings will be replaced with that of the style you have selected. For this reason I would suggest creating a copy of your template style first (
Save as Copy)). This effectively creates a backup of your style settings.
Ciaran