Pro Heavy Duty Seated Leg Curl & Extension Machine Quads Hamstrings Press

Do 1 inch plates fit on this??

Is it possible to build this with the chair on the otherside? So the weights are on the right-hand side of the user?

How do you change the setting to do quads then hamstrings . On my model there is no pin to adjust the weighted arm??

Is depth size include given on the product the total depth when the leg extention is up and out or not?