I have a '09 5600 but the cab is the same as on the 5610. All 4 windows open, the rears can be opened all the way around (forward) and be held open. The doors don't have any mechanism to keep them open, but if you have a cab, then you also have AC if you need it.
DEWFPO
Radman,
I saw you mentioned in another post that you had a manlift. What kind is this? Any potential for controlling machine from manlift bucket?