Correlation of Magnetic Field data with surface current density in CST MWS help pleas

Is there an easy way to correlate surface current density data with corresponding magnetic field data in 3D...
I can easily get access to both but there is no correlation of indexes...
I understand that H is used to calculate the surface current on PEC bounders but to get the H for the given current one must search entire H 3D volume and find appropriate
3D position which matches the current position...
In short H is both surface and air/vacuum and current is surface only...
I need to correlate in order to calculate Lorentz force surface density in frequency domain and not in eigenmode...

interesting topic, i nvr tried to correlate between H and surface current before. let me know if you fine the answer. thank you in advance..

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