Managing Consignment Sales

Hello all,

I have been using the software for a while, 

I work with retailer and i provide them with my products to display in their stores on consignment basis, and they send me a monthly report with what was sold and according to the report i create and ivoice to receive the payement. The problem is i cannot track the remaining quantities and the items that are out of date to replace them.

So i'm looking to create a wearhouse or something for each supplier where i can put the products that i give them and issue a delivery note, and when i receive the monthly report i will create the invoice and deduct from their stock.

the only issue is that i have only one stock settings and can't create another stock for a retailer.

Anyone can help with this issue or have any workaround?

Thank you.