P6 - Resource Loading (Budgeted Units)

I would like to start applying budgeted units to activities within my schedule. Scenario:

My schedule is based on 6 day/week @10hrs/day. Some resources are utilized on applicable activities for 10hrs/day.

In the case above: How do I do I load resources to the activities while taking in to account Reg. and Overtime Rates? Reg. Rate= 8hrs/day, OT Rate=2hrs

Keep in mind that I will have to insert actual mhrs/cost against this activity in the future

Any help on the setup of this would be great!

Thanks