The link in section Logs gives you direct access to the Log Analyzer, where you can inspect the logs. Refer to Showing Workload Logs and Analyzing Platform Logs for further information.
For some service types, the log level cannot be changed but the displayed link still allows you to inspect the logs.
The Logs section also informs you if there are no logs available for a service type.
Configuration
In the Kubernetes setup, it is currently not possible to modify configuration files in the Configuration section except for containerized xUML services.