[Nick8888]

Indeed. Thanks for the guide.

I did this yesterday but instead of finding an unused button in the ButtonTranslator.cpp, I used the <obc#> ones.

In the end your lircmap.xml will look like this

Code:

<obc1>OpenClose</obc1>

and keymap.xml will look like this

Code:

    <keymap>
    <global>
        <remote>
            <left>Left</left>
            <right>Right</right>
            <up>Up</up>
            <down>Down</down>
                 </remote>
                 <universalremote>
                         <obc1>XBMC.EjectTray()</obc1>
                 </universalremote>

This method allows you to add a greater amount of buttons.

Here are a few other posts on the topic
Link 1
Link 2
Link 3


EDIT: Not exactly sure why but those file locations don't look right to me, mine is
/home/.xbmc/userdata/keymaps/remote.xml
/home/.xbmc/userdata/lircmap.xml