Hitman Codename 47 Controls

[Jynx980]

There only thing I want to do is be able to use the right mouse button for moving forward. It seems stuck to some other command not in the options. I looked at the hitman.cfg file:
<Settings>
<Controls>
<Mapping Action="WalkForward">
<Key SCode="76"/>
</Mapping>
<Mapping Action="WalkBackWard">
<Key SCode="80"/>
</Mapping>
<Mapping Action="WalkLeft">
<Key SCode="79"/>
</Mapping>
<Mapping Action="WalkRight">
<Key SCode="81"/>
</Mapping>
<Mapping Action="Run">
<Key SCode="72"/>
</Mapping>
<Mapping Action="TurnLeft">
<Key SCode="75"/>
</Mapping>
<Mapping Action="TurnRight">
<Key SCode="77"/>
</Mapping>
<Mapping Action="LeanOutLeft">
<Key SCode="71"/>
</Mapping>
<Mapping Action="LeanOutRight">
<Key SCode="73"/>
</Mapping>
<Mapping Action="Sneak">
<Key SCode="78"/>
</Mapping>
<Mapping Action="ToggleMouseControl">
<Key SCode="309"/>
</Mapping>
<Mapping Action="FireWeapon">
<Key SCode="356"/>
</Mapping>
<Mapping Action="ReloadWeapon">
<Key SCode="327"/>
</Mapping>
<Mapping Action="ToggleWeaponMode">
<Key SCode="335"/>
</Mapping>
<Mapping Action="SelectNext2">
<Key SCode="337"/>
</Mapping>
<Mapping Action="SelectPrev2">
<Key SCode="329"/>
</Mapping>
<Mapping Action="DropItemInHand">
<Key SCode="74"/>
</Mapping>
<Mapping Action="DoAction">
<Key SCode="284"/>
</Mapping>
<Mapping Action="ShowMap">
<Key SCode="50"/>
</Mapping>
<Mapping Action="ShowLaptop">
<Key SCode="59"/>
</Mapping>
<Mapping Action="ShowStatus">
<Key SCode="60"/>
</Mapping>
<Mapping Action="Binoculars">
<Key SCode="55"/>
</Mapping>
<Mapping Action="EmptyHands">
<Key SCode="338"/>
</Mapping>
<Mouse Speed="4" Invert="0"/>
</Controls>
<Sound SfxVol="80" MusicVol="80" SpeechVol="90" UseEAX="1" UseHW="1" UseStreaming="1" MusicQuality="1" NumBuffers="8"/>
</Settings>


It looks like I could edit it and put in the keycode for the right mouse button. But I have no idea what number it might be. I looked on the net and found keyboard keycodes but not mouse ones. Anyone know the numbers for the mouse or any other way around this?