Thank you for your reply.

I understand that User S Matrix is a subset. I have included all the modes that I use in the EME in the user S Matrix such that it represent the total S matrix. i.e. I am simulating the cells with 10 modes and my user S matrix has 20 modes. If this is again not enough, I would appreciate if you could indicate me how to access the total S matrix of the system, since from Lumerial documentation I cannot understand it.