[jinux]

<keymap>
<global>
<keyboard>
<four>XBMC.RunPlugin(plugin://plugin.video.surveillanceroom?action=show_preview&camera_number=3)</four>
</keyboard>
</global>
<FullScreenVideo>
<keyboard>
<fourn>XBMC.RunPlugin(plugin://plugin.video.surveillanceroom?action=show_preview&camera_number=3)</four>
</keyboard>
</FullScreenVideo>
</keymap>

<keymap>
<global>
<keyboard>
<five>XBMC.RunPlugin(plugin://plugin.video.surveillanceroom?action=show_preview&camera_number=2)</five>
</keyboard>
</global>
<FullScreenVideo>
<keyboard>
<five>XBMC.RunPlugin(plugin://plugin.video.surveillanceroom?action=show_preview&camera_number=2)</five>
</keyboard>
</FullScreenVideo>
</keymap>

<keymap>
<global>
<keyboard>
<six>XBMC.RunPlugin(plugin://plugin.video.surveillanceroom?action=show_preview&camera_number=1)</six>
</keyboard>
</global>
<FullScreenVideo>
<keyboard>
<six>XBMC.RunPlugin(plugin://plugin.video.surveillanceroom?action=show_preview&camera_number=1)</six>
</keyboard>
</FullScreenVideo>
</keymap>

Works well :-)