# Creating a flattening map

This feature allows you to automatically map an existing hierarchical input structure to a new CSV-like flat output structure.

### In this section

* [Creating a flattening map with a single output](https://help.qlik.com/talend/en-US/data-mapper-user-guide/8.0-R2026-09/creating-flattening-map-with-single-output)
* [Creating a flattening map with multiple outputs](https://help.qlik.com/talend/en-US/data-mapper-user-guide/8.0-R2026-09/creating-flattening-map-with-multiple-outputs)
* [Flattened structure naming](https://help.qlik.com/talend/en-US/data-mapper-user-guide/8.0-R2026-09/flattened-structure-naming)
* [Keyboard shortcuts available in the flattening map wizard](https://help.qlik.com/talend/en-US/data-mapper-user-guide/8.0-R2026-09/keyboard-shortcuts-available-in-flattening-map-wizard)