Lotus made the pedals and steering column adjustable in the S1 as the seats were fixed. Calling them adjustable was much more than even the usual Lotus exaggeration as you had to use wrenches with your head stuffed in the driver’s footwell. With the S2 and on, the pedals weren’t as adjustable, particularly the throttle, but you still could adjust them to suit.
Long way of saying that you adjust the clutch to match your preferences and the amount of pedal travel required.