I have a xml gauge that can open the number 1 exit this is the code.
Code:

<Gauge Name="Exits" Version="1.0">
   <Element>
	<Select>
	   <Value>(G:Var1,bool)</Value>
	   <Case Value="0">
		<Image Name="Exits_off.bmp" ImageSizes="54,28,54,29"/>
	   </Case>
	   <Case Value="1">
		<Image Name="Exits_on.bmp" ImageSizes="54,28,54,28"/>
	   </Case>
	</Select>
   </Element>
   <Mouse>
	<Help ID="HELPID_CONCORDE_ENGINE_MANAGE_GO"/>
	<Cursor Type="Hand"/>
	<Click>(G:Var1) ! (&gt;G:Var1) 0 (&gt;K:TOGGLE_AIRCRAFT_EXIT)</Click>
   </Mouse>
</Gauge>
 

Im trying to make one for the next exits 2,3,4,5 for a my planes.