# Experimental features

ProBuilder has these experimental features:

- [Bezier Shape tool](workflow-create-bezier.md)
- [Boolean operations](boolean.md)

These features are still under development; they are not fully tested, and might reduce ProBuilder's stability. Use these with caution.

By default, experimental features are disabled.

To enable them, [enable the experimental features](preferences.md#experimental) preference:

![Access ProBuilder-specific preferences on Unity's Preferences window](images/Experimental_Preferences.png)