I just use a twist tie on the cord and rest it on top. No real need for a hanger w/ or w/out the cover. The AMNS has a tough time, but i just used a little masking tape and had the door open just a really small crack. Once I did this I would getting 12 hours straight of smoke using dust. However, I really only need this for cold smoking. If you are going to be hot smoking mostly, the smoker itself does a great job of producing smoke and keeping an even temperature.
I bought the cold smoking plate, which I now regret as its kind of a pain to use.
I bought the 732 and it works great. Some people said there are moisture issues of water getting into the probe where the wire goes in. I sealed this with a cheap tube of silicone from home depot, water tight and now I don't have to worry about it. I haven't purchased the Qmatz, but thinking about it for when I smoke some fish. Good luck!
Thanks. Sounds like solid advice.