Lumped Excitation and LCRs with symmetry plans

Hi,

If I have a strcture with a magnetic symmetry plane and I have a lumped port and a lumped C in this plane, do I have to adjust the values for the impedance of the port and the capacity in order to get the correct results for the full strcture?

MWS does this automaticaly, but I'm not sure about HFSS

Thx,

F.