diff --git a/src/main/java/org/dockfx/AbstractDockableNode.java b/src/main/java/org/dockfx/AbstractDockableNode.java
index 4c2d185..ed58f3f 100644
--- a/src/main/java/org/dockfx/AbstractDockableNode.java
+++ b/src/main/java/org/dockfx/AbstractDockableNode.java
@@ -7,6 +7,7 @@ public abstract class AbstractDockableNode implements DockableNode {
 
     protected BooleanProperty closeProperty = new SimpleBooleanProperty(false);
     protected DockPane mDockPane;
+    protected DockNode mDockNode;
 
     @Override
     public BooleanProperty getCloseProperty() {
@@ -22,4 +23,22 @@ public void setDockPane(DockPane dockPane) {
     public DockPane getDockPane() {
         return mDockPane;
     }
+
+    /**
+     * Owning dock node.
+     *
+     * @param dockNode
+     */
+    @Override
+    public void setDockNode(DockNode dockNode) {
+        mDockNode = dockNode;
+    }
+
+    /**
+     * @return Owning dock node.
+     */
+    @Override
+    public DockNode getDockNode() {
+        return mDockNode;
+    }
 }
diff --git a/src/main/java/org/dockfx/BasicFXMLDockPaneAdapter.java b/src/main/java/org/dockfx/BasicFXMLDockPaneAdapter.java
index f9d069d..74b02b7 100644
--- a/src/main/java/org/dockfx/BasicFXMLDockPaneAdapter.java
+++ b/src/main/java/org/dockfx/BasicFXMLDockPaneAdapter.java
@@ -58,7 +58,6 @@ public void setResources(ResourceBundle resourceBundle) {
     public DockableNode addDockableFXML(Class<? extends DockableNode> controllerClass, String FXML) throws IOException {
         return addDockableFXML(null, controllerClass, FXML);
     }
-
     /**
      * @param title Title of the Dock. If <code>null</code> uses <code>{@link DockableNode}.getDockTitle()</code>.
      * @param controllerClass Class of the controller will be used as key for mapping. So every FXML File is singleton.
@@ -66,6 +65,17 @@ public DockableNode addDockableFXML(Class<? extends DockableNode> controllerClas
      * @return the controller object.
      * */
     public DockableNode addDockableFXML(String title, Class<? extends DockableNode> controllerClass, String FXML) throws IOException {
+        return addDockableFXML(title, 2, controllerClass, FXML);
+    }
+
+    /**
+     * @param title Title of the Dock. If <code>null</code> uses <code>{@link DockableNode}.getDockTitle()</code>.
+     * @param divideRatio The divide ratio of this dock. Should be higher or equal to 2. (Default is 2 means half.)
+     * @param controllerClass Class of the controller will be used as key for mapping. So every FXML File is singleton.
+     * @param FXML FXML path relative to controllerClass. Will be loaded with `controllerClass.getResource`
+     * @return the controller object.
+     * */
+    public DockableNode addDockableFXML(String title, double divideRatio, Class<? extends DockableNode> controllerClass, String FXML) throws IOException {
         FXMLLoader loader = new FXMLLoader(controllerClass.getResource(FXML));
         if(resourceBundle != null) {
             loader.setResources(resourceBundle);
@@ -80,6 +90,8 @@ public DockableNode addDockableFXML(String title, Class<? extends DockableNode>
 
         DockNode dockNode = new DockNode(parent, title == null ? controller.getDockTitle() : title, controller.getGraphic());
         dockNode.setPrefSize(parent.prefWidth(-1), parent.prefHeight(-1));
+        dockNode.setScreenDivideRatioOnDock(divideRatio);
+        controller.setDockNode(dockNode);
 
         dockNode.closedProperty().addListener(
                 (observable, oldValue, newValue) -> controller.getCloseProperty().set(newValue)
diff --git a/src/main/java/org/dockfx/DockableNode.java b/src/main/java/org/dockfx/DockableNode.java
index e43f6ae..5990e57 100644
--- a/src/main/java/org/dockfx/DockableNode.java
+++ b/src/main/java/org/dockfx/DockableNode.java
@@ -27,6 +27,16 @@ public interface DockableNode {
 
     DockPos getDocPos();
 
+    /**
+     * Owning dock node.
+     * */
+    void setDockNode(DockNode dockNode);
+
+    /**
+     * @return Owning dock node.
+     * */
+    DockNode getDockNode();
+
     void setDockPane(DockPane dockPane);
 
     DockPane getDockPane();
diff --git a/src/main/java/org/dockfx/demo/controllers/DemoFXML2.java b/src/main/java/org/dockfx/demo/controllers/DemoFXML2.java
index 1bf63e5..d2cb279 100644
--- a/src/main/java/org/dockfx/demo/controllers/DemoFXML2.java
+++ b/src/main/java/org/dockfx/demo/controllers/DemoFXML2.java
@@ -5,6 +5,7 @@
 import javafx.fxml.FXML;
 import javafx.fxml.Initializable;
 import javafx.scene.layout.AnchorPane;
+import org.dockfx.AbstractDockableNode;
 import org.dockfx.DockPane;
 import org.dockfx.DockPos;
 import org.dockfx.DockableNode;
@@ -12,15 +13,11 @@
 import java.net.URL;
 import java.util.ResourceBundle;
 
-public class DemoFXML2 implements DockableNode,Initializable {
+public class DemoFXML2 extends AbstractDockableNode implements Initializable {
 
     @FXML
     private AnchorPane mainPane;
 
-    private final BooleanProperty closeProperty = new SimpleBooleanProperty(false);
-
-    private DockPane dockPane;
-
     /**
      * Called to initialize a controller after its root element has been
      * completely processed.
@@ -34,14 +31,6 @@ public void initialize(URL location, ResourceBundle resources) {
         mainPane.setStyle("-fx-background-color: blue");
     }
 
-    /**
-     * On dockable closed
-     */
-    @Override
-    public BooleanProperty getCloseProperty() {
-        return closeProperty;
-    }
-
     @Override
     public String getDockTitle() {
         return "Demo FXML2";
@@ -51,14 +40,4 @@ public String getDockTitle() {
     public DockPos getDocPos() {
         return DockPos.CENTER;
     }
-
-    @Override
-    public void setDockPane(DockPane dockPane) {
-        this.dockPane = dockPane;
-    }
-
-    @Override
-    public DockPane getDockPane() {
-        return dockPane;
-    }
 }
diff --git a/src/main/java/org/dockfx/demo/controllers/DemoMainFXML.java b/src/main/java/org/dockfx/demo/controllers/DemoMainFXML.java
index 01c5496..9bade72 100644
--- a/src/main/java/org/dockfx/demo/controllers/DemoMainFXML.java
+++ b/src/main/java/org/dockfx/demo/controllers/DemoMainFXML.java
@@ -43,7 +43,8 @@ public void initialize(URL location, ResourceBundle resources) {
         dockPaneAdapter.wrapInAnchorPane(dockAnchorPane);
         try {
             dockPaneAdapter.addDockableFXML(DemoFXML2.class, "DemoFXML2.fxml");
-            dockPaneAdapter.addDockableFXML("FXML2", DemoFXML2.class, "DemoFXML2.fxml");
+            double customDivideRatio = 5;
+            dockPaneAdapter.addDockableFXML("FXML2", customDivideRatio, DemoFXML2.class, "DemoFXML2.fxml");
             dummyBar.setSpacing(3);
             dummyBar.getChildren().clear();
             dockPaneAdapter.createNodeBar(dummyBar, Button.class, false);
@@ -54,9 +55,8 @@ public void initialize(URL location, ResourceBundle resources) {
 
             List<BasicFXMLDockPaneAdapter.DockableFXML> dFxml = dockPaneAdapter.getDockableFXML(DemoFXML.class);
 
-            dFxml.forEach(dockableFXML -> {
-                dockableFXML.dockNode.setScreenDivideRatioOnDock(10);
-            });
+            // Update divide ratio after dock.
+            dNode.getDockNode().setScreenDivideRatioOnDock(4);
 
 
         } catch (IOException e) {