> For the complete documentation index, see [llms.txt](https://zendevx.gitbook.io/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://zendevx.gitbook.io/docs/actions-the-power-within/untitled/definition-group.md).

# Definition Group

- [Define Variable](https://zendevx.gitbook.io/docs/actions-the-power-within/untitled/definition-group/define-variable.md)
- [Set NULL](https://zendevx.gitbook.io/docs/actions-the-power-within/untitled/definition-group/set-null.md)
- [Set Unique ID](https://zendevx.gitbook.io/docs/actions-the-power-within/untitled/definition-group/set-unique-id.md)
- [Set Value](https://zendevx.gitbook.io/docs/actions-the-power-within/untitled/definition-group/set-value.md)
- [Perform Formula](https://zendevx.gitbook.io/docs/actions-the-power-within/untitled/definition-group/perform-formula.md)
- [Assign Value](https://zendevx.gitbook.io/docs/actions-the-power-within/untitled/definition-group/assign-value.md)
- [Reset Form](https://zendevx.gitbook.io/docs/actions-the-power-within/untitled/definition-group/reset-form.md)
- [Read/Write Session Variables](https://zendevx.gitbook.io/docs/actions-the-power-within/untitled/definition-group/read-write-session-variables.md)
- [Library Functions](https://zendevx.gitbook.io/docs/actions-the-power-within/untitled/definition-group/library-functions.md)