Hello, fellow CK2610H owner here.... Congrats on the new tractor!
When I got my tractor a month ago, the dealer would only install two rear remotes. The price difference for 1 vs 2 was something like $7 Cdn.
One of mine is spring centered, the other is detented.. You just have to be aware of the detented valve and not accidentally knock it to one end or the other, and have the pump dead-head against the quick coupling. I did that, and it took me a minute to find the issue, and I have extensive hydraulic experience.
Make sure you get the linked pedal - the linked pedal is a fantastic addition if you are going to do much loader work. I didn't get the "cruise control" and should have - I will likely add it in the future.