You can filter for actions by your biggest spenders by creating a segment for these users, then filtering by that segment in analysis.
To create a segment, navigate to Definitions > Segments and click Define segment. On the page that appears, add a name, category, and filters for your segment. A segment can be defined based on any combination of behavioral actions and user-level properties.
To set up a segment for big spenders, set your segment criteria for Users who have done a count of > your complete purchase event > for all users with greater than 10 purchases.