How to use the window function (hamming) in Simulink

Can I find more examples on "Windowing function block" from DSP system toolbox to compute and apply window to input signal and not with Binary point scaling?

How to set properly Window function? Does it require to have a buffer prior using it? ZOH is done internaly by specifiying sampling time or needs to be explicitly ZOH set?

Ideally examples which are showing non-windowing vs. windowing in Simulink (not binary point scaling) are welcomed.