You can select the checkbox to the left of a Folder and click the Automation Percentage link to display a chart of the breakdown of automated vs. manual vs hybrid test cases
Tip
Automation Percentage report can also be accessed through the Reporting menu.
This will display a pie chart showing the number of automated, manual and hybrid test cases as a percentage and also in numbers of individual test cases. The example below shows 2 manual test cases (3.7%) vs 51 automated cases (94.4%) vs 1 hybrid test case (1.9%)