Groupes order with isotope ?

Hi everyone,

Our non profit organization proposes grouped orders to our members. So are we working this way :
- we "open" our website catalog and members can order until a due date ;
- when due date is over', we compil all members' commands and give orders to the producers ;
- next week, members come and get their order.

We actually have difficulties to find our new e-commerce website as we need :
- to propose different catalog online with different due dates ;
- to be able to select in BE all members' orders for one catalog ;
- from there, to know what to order to our producers.

Do you think it is possible with Isotope without having to develop a specific module ?

Thanks.