# Additional Elements

- [Listeners](https://docs.rierino.com/devops/microservices/building-blocks/additional-elements/listeners.md): Listener elements are used for tracking changes in states manager by a runner.
- [Roles](https://docs.rierino.com/devops/microservices/building-blocks/additional-elements/roles.md): Role elements are used for describing data feed from different streams with specific use cases.
- [Actions](https://docs.rierino.com/devops/microservices/building-blocks/additional-elements/actions.md): Action elements are used for specialized function calls to handlers, using already existing handler actions with predefined parameter values.
- [Generic Settings](https://docs.rierino.com/devops/microservices/building-blocks/additional-elements/generic-settings.md): Generic settings are typically used for element specific configurations which can be applied across multiple instances of the same element type.
- [Global Settings](https://docs.rierino.com/devops/microservices/building-blocks/additional-elements/global-settings.md): Global settings are typically used for runner specific configurations which are not specific to an element type, and can be loaded after the runner initialization.


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