I hope I'm asking this in the right area

I was wondering if it were possible to have ONE MAIN set of products (in admin), with multiple stores (same layouts, etc) but have them all connected. For example, I have 100 products and 7 stores, but I want to be able to go to ONE admin area and say, "I want items 1-55 to show in store #1, and items 56-100 to show in store #2."
Is this at all possible or do I have to create multiple Opencart stores with their individual product lists?
Just wondering...