To work with all the previous work, only prosilver is taken into account.
After all seems ok, all the changes for this will be applied to subsilver2.
Rationale: It's no use to do double work if it does to the trash can. It only makes sence if both are used.
If there are mistakes with my rationale of changes to prosilver, it's no use to do that to subsilver2 too and then rollback and do in a different way.