Allow post-processing in the frequency domain to show only the real part.
When solving in the frequency domain, all the post-operations return complex values, corresponding to 2 solution stages (real and imaginary). This implies that a purely "real" physical quantity, such as the norm of a field, will be accompanied by a zero imaginary part.
It would be interesting to be able to select only the relevant part, and, therefore, to have only one step in the solution. This could be particularly useful when trying to superimpose several views.