If you're talking about doing the MEL procedure (placarding) ourselves, as pilots, XJT has done it for years and Colgan did it when I was there, too. We have the procedure outlined in our book and MX Control gives us the control # and sign-off. Saves a lot of time at the outstations. They even allow us to accomplish (M) items, so long as it doesn't involve special tools or skills (i.e. pulling and collaring circuit breakers).