...
When a Drill Down Test Case is added to the Test Plan, a new backend Test Run is automatically created and a Run ID is generated. The description holds the technical name of the Test Plan and the Test Case. All Drill Down Variants selected during the creation of Drill Down Test Case are automatically added into Drill Down Variant selection for generated Test Run.
To execute a Drill Down Test Case from Test Management click on 
'Execute', the standard Drill Down Testing scenario is then displayed. Please refer to 8.3.1 ('Test Scenario EQS_DRILL (Drill Down testing)') section for more detailed description about each scenario step.
...