I created a FXML file using JavaFX Scene Builder 1.1. An AnchorPane is created by default. Why can't I modify the resizable attribute?
Why you can't edit bounds
How to resize a node in SceneBuilder
You can indirectly effect the bounds properties and directly set the resizable properties of the node by altering the min, pref and max height and width.
You can also set the pref size by selecting the pane to be resized and dragging the resizing anchors the surround the selected pane.
Do you want to disable window resizing? If so, you can do that in your application program: