Unfortunately there's no "how to" produced on these. I would suggest ...
1) Downloading the workbook and reverse engineering yourself to see how it works
2) if it's not downloadable then contact the author and see if they are willing to send you a copy.
And most of the authors are quite willing to help if you have specific questions, so don't hesitate to reach out to them.
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The top one isn't available to download but here is their contact page:
We are in luck with the bottom one: