Using SceneBuilder to Create a User Interface - JavaFX 8: A Definitive Guide to Building Desktop, Mobile, and Embedded Java Clients - page 131

Figure 3-17. The Arrange menu
The Bring to Front, Send to Back, Bring Forward, and Send Backward menu items move the selected node to the
front, back, up, or down the z-order of overlapping nodes. The Wrap in submenu contains items for each container
type and allows you to wrap a group of selected nodes into the container. For example, you can choose to wrap two
adjacent Label s into an HBox . The Unwrap menu item removes the container from the selected node.
The Preview menu is shown in Figure 3-18 .
Figure 3-18. The Preview menu