Multilevel nework marketing database schemas

I would like to disucss on designing the database for multilevel network marketing. I have not designed any databases for MLM businesses earlier.

I just want to be clear about left/right, commissions,flash outs, reserved commissions for company use, etc.

After all, it is going to be a small supermarket business limited within an area.

I will really welcome any resources to MLM guides, databases and pre-made scripts. How can I begin designing this kind of database architecture?

Thank you.