are there any body still using old MPC toolbox.

My problem is to use static gain of the output of "smpccon" command "Ks".
It has 3 parts, Kr,Kx,Kv.

I Couldn't find how to mulitply is with the states or references to obtain "u" input.
like, u=-(Kx*x+Kr*r+Kv*v)
is tihs ok?