The CAT-family is a symmtery model so you will be able to see only the half of it. You will be able to see the sliders such as 'Head Scale', 'Neck', 'Head Rotate', 'Front thigh', 'Rear Thigh' and many more..which are all controllable for changing the size. Total of 14 sliders are added to the model. Once you finish the changes you can then mirror the mesh (without meshsmooth) and remember to weld the tail which is seperate. Well most of the users would know how to work with the polygon mesh.