Top N parameter for customer and products works independently.
Means when you pick Top 3 Customers and Top 3 Products, you ca only see Top 3 customer's scores only as to overall top 3 products.
To show RESPECTIVE Top 3 products for each customer, only the way I know of is using INDEX.
The solution is not ultimate because I lost the dynamic change of TOP "N" Products title, but this is the best for now.
Create Calculate Field of [Product Top N] as Index.
Put [Product Top N] in filter shelf and show filter.
Top n_9.3.twbx 76.8 KB