Hello all, a quick query that I haven't found elsewhere (probably because it's so obvious). I've just had a ceiling/rise and fall pendant light installed but I wasn't at home at the time so I didn't know at what height it was done. Can someone please explain how I adjust the height of the cord? Do I have to get inside the cover plate to fix the slack of the card once I've chosen the right height? Any help would be much appreciated! Thanks. Marc