diff --git a/openerp/addons/base/ir/ir.xml b/openerp/addons/base/ir/ir.xml
index 6d5da0fc47a..ec13d2a1508 100644
--- a/openerp/addons/base/ir/ir.xml
+++ b/openerp/addons/base/ir/ir.xml
@@ -980,38 +980,37 @@
             <field name="arch" type="xml">
                 <form string="Fields" version="7.0">
                   <sheet>
-                    <group colspan="4" col="6">
-                        <field name="name" />
-                        <field name="model_id" attrs="{'readonly': [('state','!=', 'manual')]}"/>
-                        <field name="field_description"/>
-                        <field name="state"/>
+                    <group>
+                        <group>
+                            <field name="name" />
+                            <field name="field_description"/>
+                        </group>
+                        <group>
+                            <field name="state"/>
+                            <field name="model_id" attrs="{'readonly': [('state','!=', 'manual')]}"/>
+                            <field name="modules"/>
+                        </group>
                     </group>
-                    <notebook colspan="4">
-                        <page string="Properties">
-                            <group>
-                                <field name="ttype"/>
-                                <field name="relation" attrs="{'required': [('ttype','in', ['many2one','one2many','many2many'])],
+                    <group>
+                        <group>
+                            <field name="ttype"/>
+                            <field name="relation" attrs="{'required': [('ttype','in', ['many2one','one2many','many2many'])],
                                                                           'readonly': [('ttype','not in', ['many2one','one2many','many2many'])]}"/>
-                                <field name="relation_field" attrs="{'required': [('ttype','=','one2many')], 'readonly': [('ttype','!=','one2many')]}"/>
-                                <field name="selection" attrs="{'required': [('ttype','in',['selection','reference'])], 'readonly': [('ttype','not in',['selection','reference'])]}"/>
-                                <field name="size" attrs="{'required': [('ttype','in',['char','reference'])], 'readonly': [('ttype','not in',['char','reference'])]}"/>
-                                <field name="domain" attrs="{'readonly': [('relation','=','')]}"/>
-                                <field name="serialization_field_id" attrs="{'readonly': [('state','=','base')]}" domain="[('ttype','=','serialized'), ('model_id', '=', model_id)]"/>
-                            </group>
-
-                            <group>
-                                <field name="required"/>
-                                <field name="readonly"/>
-                                <field name="select_level"/>
-                                <field name="translate"/>
-                                <field name="on_delete" attrs="{'readonly': [('ttype','!=','many2one')]}"/>
-                                <field name="modules"/>
-                            </group>
-                        </page>
-                        <page string="Security">
-                            <field name="groups"/>
-                        </page>
-                    </notebook>
+                            <field name="relation_field" attrs="{'required': [('ttype','=','one2many')], 'readonly': [('ttype','!=','one2many')]}"/>
+                            <field name="selection" attrs="{'required': [('ttype','in',['selection','reference'])], 'readonly': [('ttype','not in',['selection','reference'])]}"/>
+                            <field name="size" attrs="{'required': [('ttype','in',['char','reference'])], 'readonly': [('ttype','not in',['char','reference'])]}"/>
+                            <field name="domain" attrs="{'readonly': [('relation','=','')]}"/>
+                            <field name="serialization_field_id" attrs="{'readonly': [('state','=','base')]}" domain="[('ttype','=','serialized'), ('model_id', '=', model_id)]"/>
+                            <field name="on_delete" attrs="{'readonly': [('ttype','!=','many2one')]}"/>
+                        </group>
+                        <group>
+                            <field name="required"/>
+                            <field name="readonly"/>
+                            <field name="select_level"/>
+                            <field name="translate"/>
+                        </group>
+                    </group>
+                    <field name="groups" invisible="1"/>
                   </sheet>  
                 </form>
             </field>