Check out this website for the SCNA:
https://scnaonline.org/incubation-advice-from-our-breeders/
(I referred to this site when I first began my Serama journey and found it very helpful with easing my concerns)
I can ONLY give you ideas from the way I do things, Fluffy.
If 1 of my Serama girls is broody (I usually have 3-4 go broody around the same time, like right now), I let them incubate. But when I use the incubator, I lay the eggs on their sides with the small end slightly pointing down. I simulate what’s most natural to a hen doing it. I only hatch small clutches at any given time though (up to 6). I don’t candle very much at all (at 7 days, at 14 days, then once right before lockdown). I do also hand turn them. Your setup is going to be different, so I’m not sure any of my methods will apply. Concerning your question #2 above: when they go into lockdown, lay them on their sides. One more thing… be prepared to assist a hatchling, if you possibly get one that cannot hatch on its own. Seramas can be difficult to hatch. I have some that I did have to assist (and I do not take this lightly at all), or I would have lost them. The only way I knew that they were in trouble was that they were trying to hatch early. When the peeping became weaker, I made the choice to assist rather than let them pass. I’m so happy I helped them out, because they’re all doing wonderful… and my tiny Clovie is currently a mama herself to 1 chick. My early girl weighs 7.9 ounces. In my experience though, most of my Seramas hatch around days 20-21.