See the list of supported devices to get information on the hand target of each device.
For Mecanim compatible avatars, the correct bones are detected automatically. For other avatars, the correct bone Transforms can be assigned manually using the Bone parameters.
It is also possible to override the default bones from Mecanim with your own choice by manual assignment of the bone. To return to the default bone, it is sufficient to clear the applicable Bone parameter.
For the spine and chest bones, it is possible to configure the limits of movement. The maximum angle can be set when Joint Limitations is enabled.