With current Unified Manager UI, this functionality is not available to you.
UM 9.8 supports customization of UM UI reporting views using Microsoft Excel, this gives you flexibility to consume the data
exported in XLSX (MS Excel) format, and add your own customization -
Custom filters (Top 10)
You can create 'N' number of customized sheets in MS Excel workbook by applying Excel features on UM data. You can upload this customization back to Unified Manager, so that it gets persisted. And after the upload when you do download / schedule in Excel format, you can see your customized sheets referring to the latest data.