Update: you can probably tell from that pic, the olive egg chick was breached. It didn't break through the air cell at all. I have been monitoring this chick all day, and pouring over information in this forum, as not only am I a broody hatch novice, I have almost zero experience with using an incubator. After more than 12 hours of zero progress, I began helping this chick. The membrane was beginning to look dry, so I began to periodically moisten it. I picked small pieces of shell in a clockwise fashion from the pip, and then the outer membrane. Very slowly, as to not tear the inner membrane. I nicked a vessel, put some wonder dust on it, and let the chick rest.
Exposed and visible vessels on the other side of the egg gave me a good way to monitor absorption. After the chick had rested, I slowly worked my way around the rest of the egg, making a "cap". The chick didn't really struggle or push at first, so I pushed the now two halves of the shell gently apart, then let the chick rest some more. The chick has been pushing a little off and on, but not very vigorously. It finally pushed the cap off, and slipped out of the wide part of the egg. There is a bit of yolk visible still, so I kind of put the chick back into the wide part of the shell, on a damp paper towel in the incubator. Hopefully, this chick pulls through. I have been at this for hours and hours! I am going to stay up and keep an eye on this little guy. Fingers crossed this chick does okay!