Hi Fermann,
1. No changes at BW staging level
2. You have to create different scope member (Europe, Asia in your case). It is quite strange that the scope dimension doesn't have non group member (CURRENCY_TYPE=N). Once the different scope members are created, you can then maintain ownership for that group
Normally what i use to do is that whenever the data gets loaded in BPC, the scope is hard coded as non group and when executing the consolidation, system will post the data on different scope member depending on the execution level of consolidation.
Regards,
Rahul