I wanted to track time spent on some specific activity in Quality Center 9.0.

Consider i want to track time spent on writing a test case with detail steps.

For this purpose, consider a custom status drop down is added. When user starts writing test case then he selects status of "Work Started" and when user finishes then he selects "Work Finished". I want system to automatically calculate time spend during the change of status from "Work Started" to "Work Finished".

Can you please guide if this is possible using workflow/scripts or through any available add-in.

Thanks in advance.