Multiple Patch syntax re: SC card

[aeropung]

The documentation for multiple_patch in PyNEC follows the original documentation, stating that, "A second card with the following format must immediately follow a SM card", but neither the PyNEC documentation nor the NEC2 documentation state what the SC card is, or how it is implemented.

Since the SC card is not included in the NEC2 documentation, I don't think this is an issue with PyNEC, per se, but since multiple_patch is a PyNEC feature, it would be great to see an example of this contained somewhere in the documentation given the prevalence of gridded antennas in the booming satellite industry.