How can I link the variables such that I can use the materials for a hyperstudy run. i.e. currently I am able to use E, Nu, Rho as three independant variables but I would want to use Mat1 (Rho, E, Nu); Mat2 (Rho, E, Nu) and similarly. Thus if I were to study the effects of 3 materials with a thickness variable with 2 levels instead of 54 runs, 6 runs should be sufficient.