MDX query for Top and Bottom Count

Top 10 Campaigns based on Opportunity Count

WITH SET [TopOpportunity] AS {TopCount([Opportunity].[Campaign Name].[Campaign Name], 10, [Measures].[Opportunity Count])}
SELECT [TopOpportunity] ON ROws,
[Measures].[Opportunity Count] ON Columns
FROM [PreSales]

Bottom10 Campaigns based on Opportunity Count

WITH SET [BottomOpportunity] AS {BottomCount([Opportunity].[Campaign Name].[Campaign Name], 10, [Measures].[Opportunity Count])}
SELECT BottomOpportunity ON ROws,
[Measures].[Opportunity Count] ON Columns
FROM [PreSales]