diff --git a/opportunity.xml b/opportunity.xml
index ce3babeeb3..fbfacca9b6 100644
--- a/opportunity.xml
+++ b/opportunity.xml
@@ -95,14 +95,14 @@
             <field name="arch" type="xml">
                 <![CDATA[
                 <tree string="Sales Leads/Opportunities">
-                    <field name="start_date" select="2"/>
-                    <field name="end_date" select="2"/>
-                    <field name="description" select="2"/>
-                    <field name="party" select="1"/>
-                    <field name="amount" select="1"/>
+                    <field name="start_date"/>
+                    <field name="end_date"/>
+                    <field name="description"/>
+                    <field name="party"/>
+                    <field name="amount"/>
                     <field name="currency"/>
-                    <field name="state" select="1"/>
-                    <field name="probability" select="2"/>
+                    <field name="state"/>
+                    <field name="probability"/>
                 </tree>
                 ]]>
             </field>
@@ -363,10 +363,10 @@
             <field name="arch" type="xml">
                 <![CDATA[
                 <tree string="Sales Leads/Opportunities Lines" fill="1" sequence="sequence">
-                    <field name="opportunity" select="1"/>
-                    <field name="product" select="1"/>
-                    <field name="quantity" select="2"/>
-                    <field name="unit" select="2"/>
+                    <field name="opportunity"/>
+                    <field name="product"/>
+                    <field name="quantity"/>
+                    <field name="unit"/>
                     <field name="sequence" tree_invisible="1"/>
                 </tree>
                 ]]>
@@ -450,14 +450,14 @@
             <field name="arch" type="xml">
                 <![CDATA[
                 <tree string="History">
-                    <field name="date" select="1"/>
-                    <field name="user" select="1"/>
-                    <field name="start_date" select="2"/>
-                    <field name="end_date" select="2"/>
-                    <field name="description" select="2"/>
-                    <field name="party" select="2"/>
-                    <field name="state" select="1"/>
-                    <field name="probability" select="2"/>
+                    <field name="date"/>
+                    <field name="user"/>
+                    <field name="start_date"/>
+                    <field name="end_date"/>
+                    <field name="description"/>
+                    <field name="party"/>
+                    <field name="state"/>
+                    <field name="probability"/>
                 </tree>
                 ]]>
             </field>
@@ -504,14 +504,14 @@
             <field name="arch" type="xml">
                 <![CDATA[
                 <tree string="Opportunities per Employee">
-                    <field name="employee" select="1"/>
-                    <field name="number" select="1"/>
-                    <field name="converted" select="2"/>
-                    <field name="lost" select="2"/>
+                    <field name="employee"/>
+                    <field name="number"/>
+                    <field name="converted"/>
+                    <field name="lost"/>
                     <field name="conversion_rate"/>
-                    <field name="amount" select="1"/>
-                    <field name="converted_amount" select="2"/>
-                    <field name="currency" select="2"/>
+                    <field name="amount"/>
+                    <field name="converted_amount"/>
+                    <field name="currency"/>
                     <field name="conversion_amount_rate"/>
                 </tree>
                 ]]>
@@ -617,14 +617,14 @@
             <field name="arch" type="xml">
                 <![CDATA[
                 <tree string="Sale Opportunities per Month">
-                    <field name="year" select="1"/>
-                    <field name="month" select="1"/>
-                    <field name="number" select="2"/>
-                    <field name="converted" select="2"/>
-                    <field name="lost" select="2"/>
+                    <field name="year"/>
+                    <field name="month"/>
+                    <field name="number"/>
+                    <field name="converted"/>
+                    <field name="lost"/>
                     <field name="conversion_rate"/>
-                    <field name="amount" select="2"/>
-                    <field name="converted_amount" select="2"/>
+                    <field name="amount"/>
+                    <field name="converted_amount"/>
                     <field name="currency"/>
                     <field name="conversion_amount_rate"/>
                 </tree>
@@ -712,15 +712,15 @@
             <field name="arch" type="xml">
                 <![CDATA[
                 <tree string="Sale Opportunities per Month">
-                    <field name="year" select="1"/>
-                    <field name="month" select="1"/>
-                    <field name="employee" select="1"/>
-                    <field name="number" select="2"/>
-                    <field name="converted" select="2"/>
-                    <field name="lost" select="2"/>
+                    <field name="year"/>
+                    <field name="month"/>
+                    <field name="employee"/>
+                    <field name="number"/>
+                    <field name="converted"/>
+                    <field name="lost"/>
                     <field name="conversion_rate"/>
-                    <field name="amount" select="2"/>
-                    <field name="converted_amount" select="2"/>
+                    <field name="amount"/>
+                    <field name="converted_amount"/>
                     <field name="currency"/>
                     <field name="conversion_amount_rate"/>
                 </tree>