How to setup a button to deploy speedbrakes (ctrl-b)

oly2b

I been trying to setup a joystick button to deploy the spreedbrakes instead of pressing ctrl-b when trying to land.

I have some code but it did not work

ONE BUTTON SCRIPTS DEPLOY FULL SPEEDBRAKES THEN <mod-up> RETRACTS THEM ON RELEASING BUTTON

GIVING FASTER REACTION TIME THAN A TOGGLE SCRIPT WHICH NEEDS 2 SEPERATE PRESSES!

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<button n="4"> <binding> <command>nasal</command> <script> setprop("/controls/flight/speedbrake", 1);

</script> </binding>

<mod-up> <binding> <command>nasal</command> <script> setprop("/controls/flight/speedbrake", 0); </script>

</binding> </mod-up> </button>

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<button n="5"> <binding> <command>property-assign</command> <property>/controls/flight/speedbrake</property>

<value type="double">1.0</value> </binding>

<mod-up> <binding> <command>property-assign</command> <property>/controls/flight/speedbrake</property>

<value type="double">0.0</value> </binding> </mod-up> </button>

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Any suggestion on this code or a better method

stuartc

<button n=5">

  <desc type="string">Speed Brake</desc>

  <repeatable type="string">false</repeatable>

 <binding>

  <command>property-toggle</command>

  <property>/controls/flight/speedbrake</property>

 </binding>

 <mod-up>

   <binding type="string">

   </binding>

  </mod-up>

 </button> 

Porcius

I use this;