> For the complete documentation index, see [llms.txt](https://docs.graph.build/EGeX4aTAJLlpg9Hh8kfl/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.graph.build/EGeX4aTAJLlpg9Hh8kfl/graph.build-studio/using-functions-in-the-studio.md).
# Using Functions in the Studio
One of the key features of Graph.Build Studio is the ability to use functions to modify data during the transformation process into graph formats.\
Details of all the available functions can be found [here](/EGeX4aTAJLlpg9Hh8kfl/functions.md).
To start working with functions, navigate to the **Functions** input tab. Functions are grouped by query in the SQL Transformer and by input file in the Semi-Structured File Transformer.
To create a function, press the `+ New Function` button.
In the `Function Name` field, you can search for the desired function using autocomplete. The `Function Label` field allows you to assign a label to the function, making it easy to identify the output data when using it in your graph model.
Once the appropriate function is selected, the required parameters for the function will be displayed. Depending on the function, these parameters can be populated either by selecting fields from your source data or by entering data manually.
In the example above, the `toUppercase` function has been selected, and the field `first_name` from the source data has been used. The function has been labelled `firstname_uppercase`. After all required fields have been completed, press the `Add Function` button to confirm.
