Function: Adds a new network option.

Function: Removes a network option by name.

Function: Updates the value of a network option that was already added.

Function: Deletes a site transient.

Function: Saves and restores user interface settings stored in a cookie.

Function: Retrieves user interface setting value based on setting name.

Function: Adds or updates user interface setting.

Function: Deletes user interface settings.

Function: Retrieves all user interface settings.

Function: Private. Sets all user interface settings.