How to set up several component items in quality plan used in MES?

Hi,

We are using MES with Quality Plan. Now user requests to add collection element 'Component Item', to record the returned components when rejecting an assembly.

I can find the 'Component Item' which is a reference type of collection element. It includes the valid components of the assembly. However, it is in MES. We cannot enter multiple records for 1 returned assembly. So we need to add several component items in the quality plan. Like Component Item A, Component Item B. But I got an error message in quality plan when adding the second component item, since it is already used in the same plan.