keymap editor: open pvrchannelguide from tvchannels list



works – watching tv channel and pressing mapped button shows epg for only this channel:

<keymap>
    <fullscreenlivetv>
        <keyboard>
            <key id=”252″>activatewindow(pvrchannelguide)</key>
        </keyboard>
    </fullscreenlivetv>
</keymap>

 
does not work – pressing mapped button on the channel list is not showing epg for exactly this selected channel,
the screen is flashing and nothing else happens, I can not see any errors in the log file

<keymap>
    <tvchannels>
        <keyboard>
            <key id=”252″>activatewindow(pvrchannelguide)</key>
        </keyboard>
    </tvchannels>
</keymap>

How can I open epg for selected channel from the channel list?