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FPGA - Scaled Window Express VI coefficients ?

Hi.

 

I'm using LabVIEW FPGA with a FlexRIO PXIe 7971R and an adapter 5783. My goal is to implement a window to scale my acquired signal before doing a FFT. For my case, something as close as possible to a rectangular window would be perfect (the energy vs time distribution is extremely uneven and i want a good signal-to-noise ratio)

 

I saw that the Scaled Window Express VI have a implementation option: Show coefficient index terminal

I looked at the LabVIEW help and I did not found what is was. 

https://zone.ni.com/reference/en-XX/help/371599P-01/lvfpga/fpga_scaled_window/

My questions are:

What does it do? How does it work?

What is the range of coefficient?

Can i change it to be close to a rectangular window but  also to keep the "Apodization" effect at the borders of my signal?

 

Thank you deeply

 

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