This is really easy. Open a file with "Open Data". You can have 10 files at the same time "d0" to "d9". With Funct. You can get the first or second derivative or the primitive function of the data. With "Move" you move the output data to be active.
It's the active data you can manipulate. With "FFT" and "IFFT" you calculate the Fourier and it's inverse transformation. The rest I think is obvious.
