We have expanded the documentation for the Fast Fourier Indicators in the Professional versions of NeuroShell Trader. https://nstsupport.wardsystemsgroup.com/support/pdf/FFT.pdf to download a PDF describing these indicators and how they might be used in trading.
https://nstsupport.wardsystemsgroup.com/support/files/fftcharts.exe to download a self extracting executable containing the two charts described in the above PDF file.