You have to enter the specific Measure Name for the selected Measure Type
For "Errors" set to "Summary General"
For "Transaction Busy Time" set to "#Overall Response Time# or <name>"
For "Page Time" set to "#Overall Response Time# or <name>"
For "Action Time" set to "#Overall Response Time# or <name>"
For "Form Response Time" set to "<Form name>"
For "Custom Timer" set to "<Measure name>"