# Custom functions and scripts

- [StackState functions](/5.1/develop/developer-guides/custom-functions/functions.md): StackState Self-hosted v5.1.x
- [Check functions](/5.1/develop/developer-guides/custom-functions/check-functions.md): StackState Self-hosted v5.1.x
- [Component actions](/5.1/develop/developer-guides/custom-functions/component-actions.md): StackState Self-hosted v5.1.x
- [Event handler functions](/5.1/develop/developer-guides/custom-functions/event-handler-functions.md): StackState Self-hosted v5.1.x
- [ID extractor functions](/5.1/develop/developer-guides/custom-functions/id-extractor-functions.md): StackState Self-hosted v5.1.x
- [Mapping functions](/5.1/develop/developer-guides/custom-functions/mapping-functions.md): StackState Self-hosted v5.1.x
- [Monitor functions](/5.1/develop/developer-guides/custom-functions/monitor-functions.md): StackState Self-hosted v5.1.x
- [Propagation functions](/5.1/develop/developer-guides/custom-functions/propagation-functions.md): StackState Self-hosted v5.1.x
- [Template functions](/5.1/develop/developer-guides/custom-functions/template-functions.md): StackState Self-hosted v5.1.x
- [View health state configuration functions](/5.1/develop/developer-guides/custom-functions/view-health-state-configuration-functions.md): StackState Self-hosted v5.1.x