SEEKING ADVICE: Getting a RE license to sell my co-op in NYC

[Jinyu Shao]

Hello! I have a co-op in Manhattan that I want to sell. It's currently being rented out, although not generating much return. I plan to take the real estate agent exam so I can be my own seller's agent and save on commission. (It's at least 6% in NY!) 

I'm currently living and working abroad and go back to visit 1-2 times per year. I'm trying to find out whether this is feasible in this situation.

I'm looking for advice for the following:

1) Can I represent myself to sell my co-op in NYC? (I know it's possible in some states, not sure if it's the same in NYC)

2) Can I do so while residing and working in a different country? (I can fly back for closing or other events that requires my presence)

3) If both of the above are okay, when do I need to be physically present?

4) Once I take the class online and pass the exam, what's next before I can represent myself to sell my property?

Thanks so much for reading. Looking forward to reading your replies!