diff --git a/addons/base/static/src/js/chrome.js b/addons/base/static/src/js/chrome.js
index 8b19d1728b7..3dc9a29cfbd 100644
--- a/addons/base/static/src/js/chrome.js
+++ b/addons/base/static/src/js/chrome.js
@@ -153,14 +153,14 @@ openerp.base.Registry = Class.extend( /** @lends openerp.base.Registry# */ {
 });
 
 /**
- * Generates an inherited class that replaces all the methods by dummy methods (methods
+ * Generates an inherited class that replaces all the methods by null methods (methods
  * that does nothing and always return undefined).
  * 
  * @param {Class} claz
  * @param {dict} add Additional functions to override.
  * @return {Class}
  */
-openerp.base.generate_dummy = function(claz, add) {
+openerp.base.generate_null_object_class = function(claz, add) {
     var newer = {};
     var copy_proto = function(prototype) {
         for (var name in prototype) {
diff --git a/addons/base/static/src/js/form.js b/addons/base/static/src/js/form.js
index a3ba230d596..2d24f99c365 100644
--- a/addons/base/static/src/js/form.js
+++ b/addons/base/static/src/js/form.js
@@ -17,7 +17,7 @@ openerp.base.FormView =  openerp.base.View.extend( /** @lends openerp.base.FormV
      */
     init: function(view_manager, session, element_id, dataset, view_id) {
         this._super(session, element_id);
-        this.view_manager = view_manager;
+        this.view_manager = view_manager || new openerp.base.NullViewManager();
         this.dataset = dataset;
         this.model = dataset.model;
         this.view_id = view_id;
@@ -29,12 +29,12 @@ openerp.base.FormView =  openerp.base.View.extend( /** @lends openerp.base.FormV
         this.ready = false;
         this.show_invalid = true;
         this.touched = false;
-        this.flags = view_manager.action.flags || {};
+        this.flags = this.view_manager.action.flags || {};
     },
     start: function() {
         //this.log('Starting FormView '+this.model+this.view_id)
         return this.rpc("/base/formview/load", {"model": this.model, "view_id": this.view_id,
-            toolbar:!!this.view_manager.sidebar}, this.on_loaded);
+            toolbar:!!this.flags.sidebar}, this.on_loaded);
     },
     on_loaded: function(data) {
         var self = this;
@@ -56,10 +56,7 @@ openerp.base.FormView =  openerp.base.View.extend( /** @lends openerp.base.FormV
         this.$element.find('#' + this.element_id + '_header button.oe_form_button_cancel').click(this.do_cancel);
         this.$element.find('#' + this.element_id + '_header button.oe_form_button_new').click(this.on_button_new);
 
-        // sidebar stuff
-        if (this.view_manager.sidebar) {
-            this.view_manager.sidebar.set_toolbar(data.fields_view.toolbar);
-        }
+        this.view_manager.sidebar.set_toolbar(data.fields_view.toolbar);
     },
     do_show: function () {
         var self = this;
@@ -72,9 +69,7 @@ openerp.base.FormView =  openerp.base.View.extend( /** @lends openerp.base.FormV
         } else {
             this.dataset.read_index(_.keys(this.fields_view.fields), this.on_record_loaded);
         }
-        if (this.view_manager && this.view_manager.sidebar) {
-            this.view_manager.sidebar.refresh(true);
-        }
+        this.view_manager.sidebar.refresh(true);
     },
     do_hide: function () {
         this.$element.hide();
@@ -961,6 +956,7 @@ openerp.base.form.FieldOne2ManyDatasSet = openerp.base.DataSetStatic.extend({
 openerp.base.form.FieldOne2ManyViewManager = openerp.base.ViewManager.extend({
     init: function(session, element_id, dataset, views) {
         this._super(session, element_id, dataset, views);
+        this.action = {flags:{}};
     }
 });
 
@@ -1010,8 +1006,10 @@ openerp.base.form.FieldMany2Many = openerp.base.form.Field.extend({
     start: function() {
         this._super.apply(this, arguments);
         this.dataset = new openerp.base.DataSetMany2Many(this.session, this.field.relation);
-        this.list_view = new openerp.base.form.Many2ManyListView(undefined, this.view.session,
-                this.list_id, this.dataset, false, {'selected': false, 'addable': 'Add'});
+        //TODO: switch to non selectable once xmo has corrected the bug related to that
+        this.list_view = new openerp.base.form.Many2ManyListView(null, this.view.session,
+                this.list_id, this.dataset, false, {'selectable-': false,
+                'addable': 'Add'});
         var self = this;
         this.list_view.m2m_field = this;
         this.list_view.start();
@@ -1119,8 +1117,8 @@ openerp.base.form.Many2XSelectPopup = openerp.base.BaseWidget.extend({
         if (this.searchview) {
             this.searchview.stop();
         }
-        this.searchview = new openerp.base.SearchView(this, this.session, this.element_id + "_search",
-                this.dataset, false, {});
+        this.searchview = new openerp.base.SearchView(null, this.session,
+                this.element_id + "_search", this.dataset, false, {});
         this.searchview.on_search.add(function(domains, contexts, groupbys) {
             self.view_list.do_search.call(
                 self, domains, contexts, groupbys);
@@ -1137,7 +1135,8 @@ openerp.base.form.Many2XSelectPopup = openerp.base.BaseWidget.extend({
                 self.stop();
             });
             self.view_list = new openerp.base.form.Many2XPopupListView( null, self.session,
-                    self.element_id + "_view_list", self.dataset, false);
+                    self.element_id + "_view_list", self.dataset, false,
+                    {'deletable': false});
             self.view_list.popup = self;
             self.view_list.do_show();
             self.view_list.start();
@@ -1158,7 +1157,7 @@ openerp.base.form.Many2XSelectPopup = openerp.base.BaseWidget.extend({
         this.searchview.hide();
         this.view_list.$element.hide();
         this.dataset.index = null;
-        this.view_form = new openerp.base.FormView(new openerp.base.DummyViewManager(), this.session,
+        this.view_form = new openerp.base.FormView(null, this.session,
                 this.element_id + "_view_form", this.dataset, false);
         this.view_form.start();
         this.view_form.on_loaded.add_last(function() {
diff --git a/addons/base/static/src/js/list.js b/addons/base/static/src/js/list.js
index 3723cf77c92..a87db02492d 100644
--- a/addons/base/static/src/js/list.js
+++ b/addons/base/static/src/js/list.js
@@ -45,7 +45,7 @@ openerp.base.ListView = openerp.base.View.extend( /** @lends openerp.base.ListVi
     init: function(view_manager, session, element_id, dataset, view_id, options) {
         var self = this;
         this._super(session, element_id);
-        this.view_manager = view_manager;
+        this.view_manager = view_manager || new openerp.base.NullViewManager();
         this.dataset = dataset;
         this.model = dataset.model;
         this.view_id = view_id;
@@ -54,10 +54,7 @@ openerp.base.ListView = openerp.base.View.extend( /** @lends openerp.base.ListVi
         this.rows = [];
 
         this.options = _.extend({}, this.defaults, options || {});
-        this.flags = {};
-        if (view_manager && view_manager.action) {
-            this.flags =  view_manager.action.flags;
-        }
+        this.flags =  this.view_manager.action.flags;
 
         this.list = new openerp.base.ListView.List({
             options: this.options,
@@ -103,7 +100,7 @@ openerp.base.ListView = openerp.base.View.extend( /** @lends openerp.base.ListVi
         return this.rpc("/base/listview/load", {
             model: this.model,
             view_id: this.view_id,
-            toolbar: this.view_manager ? !!this.view_manager.sidebar : false
+            toolbar: !!this.flags.sidebar
         }, this.on_loaded);
     },
     /**
@@ -184,10 +181,7 @@ openerp.base.ListView = openerp.base.View.extend( /** @lends openerp.base.ListVi
         var $table = this.$element.find('table');
         this.list.move_to($table);
 
-        // sidebar stuff
-        if (this.view_manager && this.view_manager.sidebar) {
-            this.view_manager.sidebar.set_toolbar(data.fields_view.toolbar);
-        }
+        this.view_manager.sidebar.set_toolbar(data.fields_view.toolbar);
     },
     /**
      * Fills the table with the provided records after emptying it
@@ -255,9 +249,7 @@ openerp.base.ListView = openerp.base.View.extend( /** @lends openerp.base.ListVi
             this.do_reload();
             this.hidden = false;
         }
-        if (this.view_manager && this.view_manager.sidebar) {
-            this.view_manager.sidebar.refresh(true);
-        }
+        this.view_manager.sidebar.refresh(true);
     },
     do_hide: function () {
         this.$element.hide();
diff --git a/addons/base/static/src/js/m2o.js b/addons/base/static/src/js/m2o.js
index 5f17371c61c..080d36e726f 100644
--- a/addons/base/static/src/js/m2o.js
+++ b/addons/base/static/src/js/m2o.js
@@ -73,7 +73,7 @@ openerp.base.m2o = function(openerp){
                                                                 minWidth: 800
                                                              });
                                 self.element.val('');
-                                var event_form = new openerp.base.FormView(new openerp.base.DummyViewManager(),
+                                var event_form = new openerp.base.FormView(null,
                                         self.session, element_id, self.dataset, false);
                                 event_form.start();
                         });
diff --git a/addons/base/static/src/js/views.js b/addons/base/static/src/js/views.js
index 13cee96d0fb..bb52009ae40 100644
--- a/addons/base/static/src/js/views.js
+++ b/addons/base/static/src/js/views.js
@@ -82,6 +82,7 @@ openerp.base.ViewManager =  openerp.base.Controller.extend({
         this.views_src = views;
         this.views = {};
         this.flags = this.flags || {};
+        this.sidebar = new openerp.base.NullSidebar();
     },
     /**
      * @returns {jQuery.Deferred} initial view loading promise
@@ -198,9 +199,10 @@ openerp.base.ViewManager =  openerp.base.Controller.extend({
     }
 });
 
-openerp.base.DummyViewManager = openerp.base.generate_dummy(openerp.base.ViewManager, {
+openerp.base.NullViewManager = openerp.base.generate_null_object_class(openerp.base.ViewManager, {
     init: function() {
-        this.action = {};
+        this.action = {flags: {}};
+        this.sidebar = new openerp.base.NullSidebar();
     }
 });
 
@@ -229,7 +231,7 @@ openerp.base.ViewManagerAction = openerp.base.ViewManager.extend({
         var inital_view_loaded = this._super();
 
         // init sidebar
-        if (this.sidebar) {
+        if (this.flags.sidebar) {
             this.$element.find('.view-manager-main-sidebar').html(this.sidebar.render());
             this.sidebar.start();
         }
@@ -256,9 +258,7 @@ openerp.base.ViewManagerAction = openerp.base.ViewManager.extend({
     },
     stop: function() {
         // should be replaced by automatic destruction implemented in BaseWidget
-        if (this.sidebar) {
-            this.sidebar.stop();
-        }
+        this.sidebar.stop();
         this._super();
     },
     /**
@@ -343,6 +343,8 @@ openerp.base.Sidebar = openerp.base.BaseWidget.extend({
     }
 });
 
+openerp.base.NullSidebar = openerp.base.generate_null_object_class(openerp.base.Sidebar);
+
 openerp.base.View = openerp.base.Controller.extend({
     /**
      * Fetches and executes the action identified by ``action_data``.