diff --git a/cesiumjs4gwt-main/pom.xml b/cesiumjs4gwt-main/pom.xml
index 4c9547f42aafd6123de715c4d63ca5d9d86e7c4f..9c72e8bcc44a236e615937bc307ba5ecf9f46dc9 100644
--- a/cesiumjs4gwt-main/pom.xml
+++ b/cesiumjs4gwt-main/pom.xml
@@ -7,7 +7,7 @@
     <parent>
         <artifactId>cesiumjs4gwt</artifactId>
         <groupId>org.cesiumjs</groupId>
-        <version>1.91.0</version>
+        <version>1.91.1</version>
     </parent>
 
     <name>CesiumJS GWT Wrapper</name>
diff --git a/cesiumjs4gwt-main/src/main/java/org/cesiumjs/cs/js/JsObject.java b/cesiumjs4gwt-main/src/main/java/org/cesiumjs/cs/js/JsObject.java
index 2046e04c0fc97fa9c3290dfc17e3d306c7861114..765262daf1a93736e1655681739733c9f1e4f4d7 100644
--- a/cesiumjs4gwt-main/src/main/java/org/cesiumjs/cs/js/JsObject.java
+++ b/cesiumjs4gwt-main/src/main/java/org/cesiumjs/cs/js/JsObject.java
@@ -52,39 +52,44 @@ public class JsObject extends JavaScriptObject {
         return base;
     }
 
-    public final static native void setProperty(Object target, String name, Number value) /*-{
+    public static native JsObject setProperty(Object target, String name, Number value) /*-{
         if (target === undefined) {
             target = {};
         }
         target[name] = value;
+        return target;
     }-*/;
 
-    public final static native void setProperty(Object target, String name, Boolean value) /*-{
+    public static native JsObject setProperty(Object target, String name, Boolean value) /*-{
         if (target === undefined) {
             target = {};
         }
         target[name] = value;
+        return target;
     }-*/;
 
-    public final static native void setProperty(Object target, String name, String value) /*-{
+    public static native JsObject setProperty(Object target, String name, String value) /*-{
         if (target === undefined) {
             target = {};
         }
         target[name] = value;
+        return target;
     }-*/;
 
-    public final static native void setProperty(Object target, String name, Object value) /*-{
+    public static native JsObject setProperty(Object target, String name, Object value) /*-{
         if (target === undefined) {
             target = {};
         }
         target[name] = value;
+        return target;
     }-*/;
 
-    public final static native void setProperty(Object target, String name, JsObject value) /*-{
+    public static native JsObject setProperty(Object target, String name, JsObject value) /*-{
         if (target === undefined) {
             target = {};
         }
         target[name] = value;
+        return target;
     }-*/;
 
     public final static native Number getNumber(Object target, String name) /*-{
@@ -117,24 +122,29 @@ public class JsObject extends JavaScriptObject {
     @JsProperty(namespace = JsPackage.GLOBAL, name = "undefined")
     public static native Object undefined();
 
-    public final native void setProperty(String name, Number value) /*-{
+    public final native JsObject setProperty(String name, Number value) /*-{
         this[name] = value;
+        return this;
     }-*/;
 
-    public final native void setProperty(String name, Boolean value) /*-{
+    public final native JsObject setProperty(String name, Boolean value) /*-{
         this[name] = value;
+        return this;
     }-*/;
 
-    public final native void setProperty(String name, String value) /*-{
+    public final native JsObject setProperty(String name, String value) /*-{
         this[name] = value;
+        return this;
     }-*/;
 
-    public final native void setProperty(String name, Object value) /*-{
+    public final native JsObject setProperty(String name, Object value) /*-{
         this[name] = value;
+        return this;
     }-*/;
 
-    public final native void setProperty(String name, JsObject value) /*-{
+    public final native JsObject setProperty(String name, JsObject value) /*-{
         this[name] = value;
+        return this;
     }-*/;
 
     public final native Number getNumber(String name) /*-{
diff --git a/cesiumjs4gwt-showcase/pom.xml b/cesiumjs4gwt-showcase/pom.xml
index bd600c34f69e5f73013423e3aed00849d6e9e823..9dd148a8dd32dab12b278c7270881c905134cf21 100644
--- a/cesiumjs4gwt-showcase/pom.xml
+++ b/cesiumjs4gwt-showcase/pom.xml
@@ -6,7 +6,7 @@
     <parent>
         <artifactId>cesiumjs4gwt</artifactId>
         <groupId>org.cesiumjs</groupId>
-        <version>1.91.0</version>
+        <version>1.91.1</version>
     </parent>
 
     <name>CesiumJS GWT Showcase</name>
diff --git a/cesiumjs4gwt-showcase/src/main/java/org/cleanlogic/cesiumjs4gwt/showcase/examples/GPX.java b/cesiumjs4gwt-showcase/src/main/java/org/cleanlogic/cesiumjs4gwt/showcase/examples/GPX.java
index c2eb24a3cf57101fb73c3621d5cfb7dc098036f0..53a853de129e2e214f12a89283a08cda628f330d 100644
--- a/cesiumjs4gwt-showcase/src/main/java/org/cleanlogic/cesiumjs4gwt/showcase/examples/GPX.java
+++ b/cesiumjs4gwt-showcase/src/main/java/org/cleanlogic/cesiumjs4gwt/showcase/examples/GPX.java
@@ -17,7 +17,9 @@
 package org.cleanlogic.cesiumjs4gwt.showcase.examples;
 
 import com.google.gwt.core.client.GWT;
+import com.google.gwt.dom.client.Document;
 import com.google.gwt.event.dom.client.ChangeEvent;
+import com.google.gwt.event.dom.client.DomEvent;
 import com.google.gwt.user.client.ui.AbsolutePanel;
 import com.google.gwt.user.client.ui.HTML;
 import com.google.gwt.user.client.ui.HorizontalPanel;
@@ -69,10 +71,7 @@ public class GPX extends AbstractExample {
 
         initWidget(contentPanel);
 
-        csVPanel.getViewer().dataSources().add(
-                GpxDataSource.load(GWT.getModuleBaseURL() + "SampleData/gpx/lamina.gpx",
-                        new GpxDataSourceOptions().setClampToGround(true))
-        ).then(dataSource -> csVPanel.getViewer().flyTo(((GpxDataSource) dataSource).entities));
+        DomEvent.fireNativeEvent(Document.get().createChangeEvent(), modelLBox);
     }
 
     @SuppressWarnings("unchecked")
diff --git a/cesiumjs4gwt-showcase/src/main/java/org/cleanlogic/cesiumjs4gwt/showcase/examples/MSAA.java b/cesiumjs4gwt-showcase/src/main/java/org/cleanlogic/cesiumjs4gwt/showcase/examples/MSAA.java
index 6f76bd2cb9a6c4853a437a12f2c4f7e1d3dc32cd..03029a80b7bebae962ba64f69c42b352675bd51f 100644
--- a/cesiumjs4gwt-showcase/src/main/java/org/cleanlogic/cesiumjs4gwt/showcase/examples/MSAA.java
+++ b/cesiumjs4gwt-showcase/src/main/java/org/cleanlogic/cesiumjs4gwt/showcase/examples/MSAA.java
@@ -17,7 +17,10 @@
 package org.cleanlogic.cesiumjs4gwt.showcase.examples;
 
 import com.google.gwt.core.client.GWT;
+import com.google.gwt.dom.client.Document;
 import com.google.gwt.event.dom.client.ChangeEvent;
+import com.google.gwt.event.dom.client.DomEvent;
+import com.google.gwt.user.client.Window;
 import com.google.gwt.user.client.ui.AbsolutePanel;
 import com.google.gwt.user.client.ui.HTML;
 import com.google.gwt.user.client.ui.HorizontalPanel;
@@ -34,10 +37,9 @@ import org.cesiumjs.cs.datasources.graphics.options.ModelGraphicsOptions;
 import org.cesiumjs.cs.datasources.options.EntityOptions;
 import org.cesiumjs.cs.datasources.properties.ConstantPositionProperty;
 import org.cesiumjs.cs.datasources.properties.ConstantProperty;
-import org.cesiumjs.cs.datasources.properties.Property;
+import org.cesiumjs.cs.js.JsObject;
 import org.cesiumjs.cs.scene.Cesium3DTileset;
 import org.cesiumjs.cs.scene.Scene;
-import org.cesiumjs.cs.scene.options.ModelOptions;
 import org.cesiumjs.cs.scene.options.ViewOptions;
 import org.cesiumjs.cs.widgets.Viewer;
 import org.cesiumjs.cs.widgets.ViewerPanel;
@@ -58,7 +60,14 @@ public class MSAA extends AbstractExample {
 
     @Override
     public void buildPanel() {
-        csVPanel = new ViewerPanel();
+        ViewerOptions options = new ViewerOptions();
+        options.terrainProvider = Cesium.createWorldTerrain();
+        options.contextOptions = JsObject.create().setProperty("requestWebgl2", true);
+        csVPanel = new ViewerPanel(options);
+
+        if (!csVPanel.getViewer().scene().msaaSupported()) {
+            Window.alert("This browser does not support MSAA.");
+        }
 
         ListBox modelLBox = new ListBox();
         modelLBox.addItem("Statue of Liberty", "0");
@@ -86,6 +95,8 @@ public class MSAA extends AbstractExample {
         contentPanel.add(aPanel);
 
         initWidget(contentPanel);
+
+        DomEvent.fireNativeEvent(Document.get().createChangeEvent(), modelLBox);
     }
 
     private void setModel(ChangeEvent event) {
diff --git a/cesiumjs4gwt-showcase/src/main/resources/org/cleanlogic/cesiumjs4gwt/public/examples/GPX.txt b/cesiumjs4gwt-showcase/src/main/resources/org/cleanlogic/cesiumjs4gwt/public/examples/GPX.txt
index 6e8432b2794200f95f7c4eddaefa0103fd982fbc..f01d4d6153ec112fd028797e3d7940c3dab3c241 100644
--- a/cesiumjs4gwt-showcase/src/main/resources/org/cleanlogic/cesiumjs4gwt/public/examples/GPX.txt
+++ b/cesiumjs4gwt-showcase/src/main/resources/org/cleanlogic/cesiumjs4gwt/public/examples/GPX.txt
@@ -1,7 +1,9 @@
 package org.cleanlogic.cesiumjs4gwt.showcase.examples;
 
 import com.google.gwt.core.client.GWT;
+import com.google.gwt.dom.client.Document;
 import com.google.gwt.event.dom.client.ChangeEvent;
+import com.google.gwt.event.dom.client.DomEvent;
 import com.google.gwt.user.client.ui.AbsolutePanel;
 import com.google.gwt.user.client.ui.HTML;
 import com.google.gwt.user.client.ui.HorizontalPanel;
@@ -53,10 +55,7 @@ public class GPX extends AbstractExample {
 
         initWidget(contentPanel);
 
-        csVPanel.getViewer().dataSources().add(
-                GpxDataSource.load(GWT.getModuleBaseURL() + "SampleData/gpx/lamina.gpx",
-                        new GpxDataSourceOptions().setClampToGround(true))
-        ).then(dataSource -> csVPanel.getViewer().flyTo(((GpxDataSource) dataSource).entities));
+        DomEvent.fireNativeEvent(Document.get().createChangeEvent(), modelLBox);
     }
 
     @SuppressWarnings("unchecked")
diff --git a/cesiumjs4gwt-showcase/src/main/resources/org/cleanlogic/cesiumjs4gwt/public/examples/MSAA.txt b/cesiumjs4gwt-showcase/src/main/resources/org/cleanlogic/cesiumjs4gwt/public/examples/MSAA.txt
index 0293dd6cae8bc041cadd357fec73691db65fb1a6..26bdb9bca8aa4299f2b0630319a15235b0f32524 100644
--- a/cesiumjs4gwt-showcase/src/main/resources/org/cleanlogic/cesiumjs4gwt/public/examples/MSAA.txt
+++ b/cesiumjs4gwt-showcase/src/main/resources/org/cleanlogic/cesiumjs4gwt/public/examples/MSAA.txt
@@ -1,7 +1,10 @@
 package org.cleanlogic.cesiumjs4gwt.showcase.examples;
 
 import com.google.gwt.core.client.GWT;
+import com.google.gwt.dom.client.Document;
 import com.google.gwt.event.dom.client.ChangeEvent;
+import com.google.gwt.event.dom.client.DomEvent;
+import com.google.gwt.user.client.Window;
 import com.google.gwt.user.client.ui.AbsolutePanel;
 import com.google.gwt.user.client.ui.HTML;
 import com.google.gwt.user.client.ui.HorizontalPanel;
@@ -18,10 +21,9 @@ import org.cesiumjs.cs.datasources.graphics.options.ModelGraphicsOptions;
 import org.cesiumjs.cs.datasources.options.EntityOptions;
 import org.cesiumjs.cs.datasources.properties.ConstantPositionProperty;
 import org.cesiumjs.cs.datasources.properties.ConstantProperty;
-import org.cesiumjs.cs.datasources.properties.Property;
+import org.cesiumjs.cs.js.JsObject;
 import org.cesiumjs.cs.scene.Cesium3DTileset;
 import org.cesiumjs.cs.scene.Scene;
-import org.cesiumjs.cs.scene.options.ModelOptions;
 import org.cesiumjs.cs.scene.options.ViewOptions;
 import org.cesiumjs.cs.widgets.Viewer;
 import org.cesiumjs.cs.widgets.ViewerPanel;
@@ -42,7 +44,14 @@ public class MSAA extends AbstractExample {
 
     @Override
     public void buildPanel() {
-        csVPanel = new ViewerPanel();
+        ViewerOptions options = new ViewerOptions();
+        options.terrainProvider = Cesium.createWorldTerrain();
+        options.contextOptions = JsObject.create().setProperty("requestWebgl2", true);
+        csVPanel = new ViewerPanel(options);
+
+        if (!csVPanel.getViewer().scene().msaaSupported()) {
+            Window.alert("This browser does not support MSAA.");
+        }
 
         ListBox modelLBox = new ListBox();
         modelLBox.addItem("Statue of Liberty", "0");
@@ -70,6 +79,8 @@ public class MSAA extends AbstractExample {
         contentPanel.add(aPanel);
 
         initWidget(contentPanel);
+
+        DomEvent.fireNativeEvent(Document.get().createChangeEvent(), modelLBox);
     }
 
     private void setModel(ChangeEvent event) {
diff --git a/pom.xml b/pom.xml
index 17ecb12da6c0baea957978fb06ae643cdad0c5f5..b86a8d035a502a1fa6a8f841397fdc2e9c582578 100644
--- a/pom.xml
+++ b/pom.xml
@@ -7,7 +7,7 @@
     <groupId>org.cesiumjs</groupId>
     <artifactId>cesiumjs4gwt</artifactId>
     <packaging>pom</packaging>
-    <version>1.91.0</version>
+    <version>1.91.1</version>
     <name>CesiumJS GWT Framework</name>
 
     <properties>