Summary Workspaces Drill Down

Hi, Not sure if this is a bug or by-design When using summary workspaces there does not appear to be an option to drill-down on the Purchases Summary Workspace in the same way you can drill-down on the Sales Summary workspace In Sales Summary workspace you can click a segment of a chart or click the View Data when hovering over a sectionThis opens a workspace drill-down with that enquiry, there does not appear to be a similar function available in the Purchase Summary Workspace. Would be handy from a Purchase/Payments Control point of view