How to create to Quantity contract with reference to multiple different t

Hi

First of all I would like to think you all to sharing your valuable inputs.

We have a requirement to create Quantity contract with reference to multiple different types of quotations. Example like: ZAB1-quotation / ZAB2- quotation /ZAB3_ quotation /ZAB4_ questions etc....

When I am creating Quantity contract I need to refer all the different quotation.

Appreciate your quick replay.

Thanks in advance.

Sai