plot magnetic current in hfss

anybody knows the answer ?
its urgent for me

Probably, there is not such feature.

anybody knows the answer ?

I don't know if its too late for you but you can use HFSS Fields Calculator to plot the magnetic current in HFSS. Use the formula M = -nxE to compute the magnetic current on the surface of the aperture. You have to be careful to select a face as this formula is not valid for volume selections. Hope this helps.