From an operator's perspective--When operating a triple boom like that, does the operator use the boom sections in a coordinated manner with the dipper and bucket? To clarify, when I'm operating a conventional excavator, I'm constantly making coordinated movement of the bucket, dipper, boom, and swing, sometimes all at the same time. Does an operator integrate the other boom section into all that, or is it more of a matter of setting it at a certain angle, working it at that angle for a while, and then moving it again when needed? Also, how is it controlled--a seperate stick in the cab, or a selector switch on one of the other sticks (like the boom swing on some mini excavators), or something entirely different?