Method: Sets up initial settings

Method: Generates just the default option names and values

Method: Gets the current options stored for a given location.

Method: Updates the options array in the module; loads saved settings with get_option() or uses defaults

Method: handle option resetting and updating

Method: Update postmeta for metabox.

Method: Outputs radio buttons, checkboxes, selects, multiselects, handles groups.

Method: Outputs a setting item for settings pages and metaboxes.