My Advice is to try to create this using Advanced Logical SQL. The trick in the 2nd query will be to remove those items that get into the top 10 in the first query. This could also be achieved by using a nested union, where the 2nd row is a union minus.
In my union report, the first report only has the top 10 and rest others in first report and the second one. can you please let me know in detail of achieving this please.
In the advanced SQL you can use standard SQL Syntax for out er joins, e.g. you can use LEFT OUTER JOIN
(Sorry it took so long to reply!)