CAT2 Time Reporting - Multiple Plants under 1 company code

We have 2 plant #s under 1 company code and currently for Time Writing against Plant Maintenance orders, we have to set up 2 separate personnel numbers for each maintenance employee so they can charge time to the 2 different plants.

Is there a way that we can have only 1 personnel number set up for each employee that will allow them to charge time against orders for both plants?