> For the complete documentation index, see [llms.txt](https://docs.zerowork.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.zerowork.io/using-zerowork/using-building-blocks/dynamic-inputs/references-to-variables-and-tables.md).

# References to Variables and Tables

Click on the **V** (for [variables](/using-zerowork/using-variables.md)) or **T** (for [tables](/using-zerowork/using-tables.md)) at the top right of your building block to add a reference to a table or variable.

<figure><img src="https://3220183989-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fg9LcR8XM7TGOzOCDGsCS%2Fuploads%2Fi6MjFUtQpoqfVKBMMtly%2Fimage%20(3).png?alt=media&amp;token=c19ccf96-2754-4a1d-825c-d7dc3d9bb9a7" alt=""><figcaption></figcaption></figure>