Hi Banashri,
You can absolutely do Chamonix Mountain Fit without hopping or jumping. I have a knee injury that flares up quite often, and on those days I modify to avoid the hopping and jumping. These are some of the ways I modify:
warmup — hopping — I jog around the house or in place
circuit – split jumps — I do these stationary (same movement, just not jumping) and do half the time with one leg forward (regular lunge), then switch legs.
circuit – hopping — I do a set of squats or romanian deadlifts or other lower body exercise that doesn’t aggravate the knee.
Does that help?
Jane