HI Dutyfree-
OK I checked and there might be a solution for you but I do not know what exactly the report design is or what you must display and how. I'll try to explain here but you may need to play with it based on how you are grouped, totally/summing and display requirements.
Under your Group1 on Countries:
1- use the group sort expert and fill it all in the info as you want based on your sums etc.
2 - click on the "Include Others with the Name" and call it whatever you need to..
You will notice now that you only have 6 groups in GH1, all of your non-type 5 countries have a group called "Others".
If you want to work around this and still need to group them individually add another group on your Country Name as group2. THis will regroup these "Others" into there respective individual countries. You can also suppress the group header1 to avoid showing duplicate names for the top5
GH1 - "Countries" as sort on top5 include others.
GH2 - "Countries"
Details
GF2
GF2 - sum/count for your percentages for your top5 pie chart
Does this make sense?