how to simulate PMC in CST

there is PEC material available in CST which we can use to model metal parts in our structure.
i want to know how i can model some part as PMC?
is there PMC material availbe and if not then anybody know how to model PMC structure.

thanks

u can do it by choose new material,normal,its electric conductivity zero,its magnetic conductivity is very large,say 5.8e8,regards