Default monitoring - This option directs Performance Explorer to monitor a recommended set of data sources based on the application type under test. This is equivalent to enabling the Automatically start monitoring and Use default monitoring template settings for the Performance Explorer workspace ( ).
Custom monitoring - This option opens Performance Explorer in monitoring mode with the Data Source Wizard - Select Data Sources dialog box open, enabling you to manually configure data sources. Your Performance Explorer monitoring project settings will be saved along with your Silk Performer project settings.
No monitoring - This option enables you to run your test without monitoring of any local or remote servers. With this option the Automatically start monitoring setting is disabled ( ).