# Open BehaviourTree Graph

To edit BehaviourTree You need to open a BehaviourTree graph in the Arbor Editor window.

- In the Hierarchy window, select GameObject with BehaviourTree component.
- Click “Open Editor” button of BehaviourTree component editor in Inspector window.

Also, if the Arbor Editor window is already open, it will switch if you select GameObjet with BehaviourTree component in the Hierarchy window.