You can modify service settings both globally—across all services in your environment—or for individual services.
To define service settings globally, go to Settings > Server-side service monitoring.
To define service settings for an individual service
APIs are available for the majority of the settings.
Rules and settings on the service level override the ones defined globally.
You can create the equivalent of a merged service via Custom service detection rules. Existing merged services can be viewed and edited via the Dynatrace web UI.