> For the complete documentation index, see [llms.txt](https://myty.gitbook.io/products/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://myty.gitbook.io/products/kit/getting-started/1.-prepare-illustration-psb/recommended-psb-file-structure-for-trait-mapper.md).

# Recommended PSB file structure for Trait Mapper

### Why do we recommend to use an updated PSB structure?

When the PSB file structure changes, it requires a new Trait Mapper. Updates in Trait Mapper are not interchangeable in the Unity project file. This leads the creators to repeat the previous rigging process in the new Unity project file.

With the updated PSB file structure, it allows creators to execute minor edits and update the quality of the traits without the burden of creating a new Unity Project.

#### How to Setup a New PSB file Structure?

{% hint style="success" %}
Extra layers and folders allow easy conversion of PSB files within the same Unity project file, increasing the flexibility of work.
{% endhint %}

Repeat the process for each trait while keeping the consistency for hierarchy and layer names:

1. Duplicate the folder for the trait
2. Empty the contents of the layer

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