Mapping payroll and Time

Dear Gurus,

I have a situation here where in client wants to roll out the HR module in his new plant, the new plant is under the same company code.

I have figured out that i need to create PA, PSA all the employee data and the time management and pay roll remains the same for them.

so can some one tell me how to do the assignments to the new personnel area and sub area which we had created...

all the groupings settuings which we need to take care so that the same payroll is applicable for the employees under the new plant.

Can some one guide me

Regards

San sai