SAP RVBCONVMAT2BM Set Batch Management to materials with stock

Dear Gurus:

We are trying to make mass changes in material master, to activate arround 2,000 materials with batch management flag. We heard about the SAP program release RVBCONVMAT2BM, to let us do it in ma massive action.

Could anyone of you can give me support to get this program?

In other way, the tasks to be done manually will be not succesful because we currently have more than one month of operations in SAP.