Default Dimension Member in Tabular Cube

v-chuncz-msft: Thank you. But I cannot relate this solution to my issue. I am trying to set a defalt for a country. Given list of 10 countries where the customer has sales, I want to display a particular country as default. (Initially when the cube report is accessed). Later the user has freedom to choose and filter any other country. Do you think creating a new attribute and key column in my Dimension could solve this?

Thanks for your help!