An application template tag used to wrap a number of App:Setting tags.

Attributes:

• id (required)

  A unique identifier for this group of settings.

• class (optional)

  If specified, applies this CSS class to the fieldset tag produced.

• shown (optional; default "1")

  Controls whether the fieldset is initially shown or not. If hidden, a CSS "hidden" class is applied to the fieldset tag.

Example:

    <MTApp:SettingGroup id="foo">
        <MTApp:Setting ...>
        <MTApp:Setting ...>
        <MTApp:Setting ...>
    </MTApp:SettingGroup>