Repalce alternative structure and routing

 I want to replace  alternative structure and routing that is, the alternative *  becomes in alternative 1 and alternative 1 becomes  alternative  *.

For example:

In the sitation 1 (S1), 

• alternative * S1 = alternative *  S1
• alternative 1 S1 = alternative 1 S1

In the sitation 2 (S2), 

• alternative * S2 = alternative 1  S1
• alternative 1 S2 = alternative *  S1

I tried differents methods:

1. Create a new revision and copy alternative 1 S1 like alternative *  S2 and alternative * S1 like alternative 1 S2
2. Create alternatives in revisión 1 and choose manually revisión 1 and alternaitve 1 when the shop order is creating. 
3. Update masive the alternative of shop order.

These methods are not valid for clients. Are there another methods to replace alternative?

Thanks