Change component allocation in CEWB for multiple routes

Hi All

I experience a huge problem.

I will describe the problem in a very simple manner:

Material A  consist of:

     0010 Material C

     0020 Material D

Material B

     0010 Material C

     0020 Material E

We have two routings:

1. Routing for material A

2. Routing for material B

Now we want to change component allocation of Materal C from operation 0010 to 0020.

In standard SAP i will use CA02:

1. for  Material A and change assignment of C

2. for  Material B and change assignment of C

I would like to change the component assignment of material C for both routings in a Mass Change

I have read about CEWB, but i can not find a way to solve this.

Do you have any experience/solution to this problem