Hi,
Yes, you can do FixedLayer.Add(), the same way you would do it for B_ext.Add(), or J.Add(). For examples, you can refer to the spinning hard disk example on the
example page, or the '
Excitation' section in the API. Those examples show it being used with B_ext.Add(), but it is done in the exact same way for Fixedlayer.Add().
Best,
Josh L.