Details of how to use the plugins with your bundler reside in the Frontend Observability plugin under the "Settings" -> "Source Maps" tab after clicking into your instrumented app. That tab includes ...

├── src/ │ └── plugins/ │ └── example/ │ └── main/ │ └── js/ │ ├── Main.js # Plugin entry point │ ├── Plugin.js # Main plugin registration │ ├── api/ │ │ └── Commands.js # Editor commands │ ├── core/ ...