Using Standard and Acutal Cost in Oracle Project (R12)

Hi,

We are currently using Oracle Projects for single country and single operating unit. Now we have plans to roll out to 10 more countries. 

Existing operating unit is calculating labor cost based in HR rates using extension. When we run PRC: Distribute Labor Cost, it picks rates from HR (based on the salary breakup in HR).

Now for many new countries and operating units, we have requirement to use standard rates. So we will use Actual Cost for 6 countries and standard cost for 5 countries.

1. Can we use extension for all countries which are using actual rates?

2. Can we define standard rates in projects for countries which are using standard rates?