Example menu

yacht_menu.xml

<menu  name="yacht" title="Main yacht menu">
   <item title="Navigation">
        <item title="Position"/>
        <item title="Speed over ground"/>
        <item title="Heading"/>
    </item>
    <item title="Weather">
        <item title="Windspeed"/>
        <item title="Barometer"/>
    </item>
    <item title="Date and Time">
        <item title="Date"/>
        <item title="Time"/>
        <item title="Ships Bell"/>
    </item>
    <item title="Tide">
        <!-- get data from tide prediction program for nearest location --> 
       <item title="High Water"> </item>
       <item title="Low Water"> </item>
       <item title="Range"/>
       <item title="Location"/>
    </item>
    <item title="Anchor Watch"/>
</menu>