Enable Form

In sculpt mode, you have a unique set of gestures available to you for making custom shapes.

To initiate form, pick a shape and a tool, and tap the spheres of both controllers together .

You can then move your controllers around to manipulate your shape.

You can use the tool with it as you move the controllers, giving you a changing shape as you work.

Or, once you have the shape you're happy with, press the secondary T button to set shape.