Duplicate a Module
Once you created a Module, you can duplicate it to the same or other Bills of Process. Go to the Bill of Process that you want to duplicate the Module into and click here:

Select the Module that you want to duplicate and you're done!
There's two things to keep in mind. First, article allocations to steps might have EBOM part allocations in them. If you copy a Module to another BOP, it does not share that EBOM so all EBOM part allocations will become manual part allocations. If you, however, copy a Module to the same BOP, the EBOM part allocations stay intact.
Second thing to keep in mind is that Tools are Site dependent so their requirement in Steps is only duplicated if the original and the new Module are in the same Site.