diff --git a/plugins/c9.ide.plugins/mock/c9.ide.example3/plugin.html b/plugins/c9.ide.plugins/mock/c9.ide.example3/plugin.html
new file mode 100644
index 00000000..d8688f81
--- /dev/null
+++ b/plugins/c9.ide.plugins/mock/c9.ide.example3/plugin.html
@@ -0,0 +1 @@
+<div class="helloworld">Hello World</div>
\ No newline at end of file
diff --git a/plugins/c9.ide.plugins/mock/c9.ide.example3/plugin.js b/plugins/c9.ide.plugins/mock/c9.ide.example3/plugin.js
new file mode 100644
index 00000000..3dca2f71
--- /dev/null
+++ b/plugins/c9.ide.plugins/mock/c9.ide.example3/plugin.js
@@ -0,0 +1,155 @@
+define(function(require, exports, module) {
+    main.consumes = [
+        "Plugin", "ui", "commands", "menus", "preferences", "settings"
+    ];
+    main.provides = ["myplugin"];
+    return main;
+
+    function main(options, imports, register) {
+        var Plugin = imports.Plugin;
+        var ui = imports.ui;
+        var menus = imports.menus;
+        var commands = imports.commands;
+        var settings = imports.settings;
+        var prefs = imports.preferences;
+        
+        /***** Initialization *****/
+        
+        var plugin = new Plugin("Ajax.org", main.consumes);
+        var emit = plugin.getEmitter();
+        
+        var showing;
+        function load() {
+            commands.addCommand({
+                name: "mycommand",
+                bindKey: { mac: "Command-I", win: "Ctrl-I" },
+                isAvailable: function(){ return true; },
+                exec: function() {
+                    showing ? hide() : show();
+                }
+            }, plugin);
+            
+            menus.addItemByPath("Tools/My Menu Item", new ui.item({
+                command: "mycommand"
+            }), 300, plugin);
+            
+            settings.on("read", function(e){
+                settings.setDefaults("user/my-plugin", [
+                    ["first", "1"],
+                    ["second", "all"]
+                ]);
+            });
+            
+            prefs.add({
+                "Example" : {
+                    position: 450,
+                    "My Plugin" : {
+                        position: 100,
+                        "First Setting": {
+                            type: "checkbox",
+                            path: "user/my-plugin/@first",
+                            position: 100
+                        },
+                        "Second Setting": {
+                            type: "dropdown",
+                            path: "user/my-plugin/@second",
+                            width: "185",
+                            position: 200,
+                            items: [
+                                { value: "you", caption: "You" },
+                                { value: "me", caption: "Me" },
+                                { value: "all", caption: "All" }
+                            ]
+                        }
+                    }
+                }
+            }, plugin);
+        }
+        
+        var drawn = false;
+        function draw() {
+            if (drawn) return;
+            drawn = true;
+            
+            // Insert HTML
+            var markup = require("text!./plugin.html");
+            ui.insertHtml(document.body, markup, plugin);
+            
+            // Insert CSS
+            ui.insertCss(require("text!./style.css"), options.staticPrefix, plugin);
+        
+            emit("draw");
+        }
+        
+        /***** Methods *****/
+        
+        function show() {
+            draw();
+            
+            var div = document.querySelector(".helloworld");
+            div.style.display = "block";
+            div.innerHTML = settings.get("user/my-plugin/@second");
+            
+            emit("show");
+            showing = true;
+        }
+        
+        function hide() {
+            if (!drawn) return;
+            
+            document.querySelector(".helloworld").style.display = "none";
+            
+            emit("hide");
+            showing = false;
+        }
+        
+        /***** Lifecycle *****/
+        
+        plugin.on("load", function() {
+            load();
+        });
+        plugin.on("unload", function() {
+            drawn = false;
+            showing = false;
+        });
+        
+        /***** Register and define API *****/
+        
+        /**
+         * This is an example of an implementation of a plugin.
+         * @singleton
+         */
+        plugin.freezePublicAPI({
+            /**
+             * @property showing whether this plugin is being shown
+             */
+            get showing(){ return showing; },
+            
+            _events: [
+                /**
+                 * @event show The plugin is shown
+                 */
+                "show",
+                
+                /**
+                 * @event hide The plugin is hidden
+                 */
+                "hide"
+            ],
+            
+            /**
+             * Show the plugin
+             */
+            show: show,
+            
+            /**
+             * Hide the plugin
+             */
+            hide: hide,
+        });
+        
+        register(null, {
+            "myplugin": plugin
+        });
+    }
+});
\ No newline at end of file
diff --git a/plugins/c9.ide.plugins/mock/c9.ide.example3/plugin_test.js b/plugins/c9.ide.plugins/mock/c9.ide.example3/plugin_test.js
new file mode 100644
index 00000000..3ae2262d
--- /dev/null
+++ b/plugins/c9.ide.plugins/mock/c9.ide.example3/plugin_test.js
@@ -0,0 +1,41 @@
+"use client";
+"use mocha";
+
+define(function(require, exports, module) {
+    main.consumes = ["plugin.test", "myplugin"];
+    main.provides = [];
+    return main;
+
+    function main(options, imports, register) {
+        var test = imports["plugin.test"];
+        var myplugin = imports.myplugin;
+        
+        var describe = test.describe;
+        var it = test.it;
+        var before = test.before;
+        var after = test.after;
+        var beforeEach = test.beforeEach;
+        var afterEach = test.afterEach;
+        var assert = test.assert;
+        var expect = test.expect;
+        
+        /***** Initialization *****/
+        
+        describe(myplugin.name, function(){
+            this.timeout(2000);
+            
+            it("shows a helloworld div", function() {
+                myplugin.show();
+                expect(document.querySelector(".helloworld")).to.ok;
+                expect(document.querySelector(".helloworld").innerText).to.equal("all");
+            });
+            
+            it("hides the div", function() {
+                myplugin.hide();
+                expect(document.querySelector(".helloworld").offsetHeight).to.not.ok;
+            });
+        });
+        
+        register(null, {});
+    }
+});
\ No newline at end of file