Use this toggle to enable the Expand Direction button in the toolbar. With this button, the user can choose which nodes are revealed in relation to the focus node when the it is expanded.

• Source to Target: Clicking on a focus node will expand all its collapsed target nodes.
• Target to Source: Clicking on a focus node will expand all source nodes that are collapsed.
• Both Directions: Clicking on a focus node will expand all its source and target nodes that are collapsed.