Hello,

the predefined one is the correct settings.
"Enable Template Switcher" must be to 'Yes' to have the Desktop version on the Desktop and Responsivizer Mobile version on the Mobile device only.

If you get the mobile version on your desktop, ensure that you have not the cookie still active and in that case ensure to clear cookies. The plugin does a device detection to switch to the mobile template thus there are no reason to have the mobile version on desktop unless a cookie is propagated or the browser is spoofing the user agent as mobile.

Greetings,
John