Saved design per product, not linked to account only.

When i save a design in a product like a stamp (that is 55x22mm),if i'm logged and set the saveing per account, i can find the same design in a different product like a banner (can be 10x5 meters) that is a completely different product and is not a compatible design between this product.

My request is to link saved design to product specifically and not per user in all product.