Need urgent help :( Two way of grouping products

Hello

My name is Kacper Pabjanczyk, i'm developer from Poland. I have a question about nopCom 1.9. My client would like to have a shop with wallpaper and the problem is that wallpapers can be grouped in 3 ways.

1. By Categories
2. By Catalog
3. By manufacturer.

And I have to show all those grouping in main page. I can do grouping by Categories and Manufacturer but I have no idea how to add the third grouping by Catalogs. Is there any simple solution how to do it?

Best regards

kacper.pabjanczyk wrote:
No. I think you need to add one more entity (similar to existing 'Category' or 'Manufacturer')