User defined persistent plugin settings though API - How?

Browsing through the Sdl.Core API I noticed the namespace for Settings, however I found no sample code or pointers to how SDL manages the settings of the plugin.

The scenario is this: whenever the Edit method is called of the ITranslationProviderWinFormsUI of the Trados Studio plugin, I would like to store those custom and user defined settings in a persistent storage, say an XML file. I take this is what the Sdl.Core.Settings namespace is for.

Any pointers on the usage of it would be appreciated...