Improvement on PROFIT AND MARGIN REPORT

Please allow profit and margin report per supplier instead of per costumer. It appears that costumer and suppliers are on the same dropdown menu and when we select a supplier in that dropdown, it gives a report based on who buys it instead of who supplied the product. If this is least possible, can we atleast allow a per product grouping profit and margin report?

The point here is we greatly need a profit and margin report based on a certain group of product only and not as a whole.

I hope we can work on this. Please and thank you!