New source system : selective source system change

Hello,

Here is the situation, in BW dev we had only one system for all R3 module, DEV. Now they have split DEV in two system for HR and the rest of the modules. We than have HRD and DEV. HRD is a new system which have to be connected in BW Dev. That's not the problem.

The problem is that all my HR extractions have now to take place in HRD, and not anymore in DEV (where the others modules extractions still have to continue).

I would like to change the source system assignement, but only for the HR infosources, and not manually one by one ...

I cannot use BDLS or something like that because it will change all the assignements, and not only HR ones.

Do you have any experience ?

Jarod