diff --git a/addons/crm/crm_lead_view.xml b/addons/crm/crm_lead_view.xml
index 12be0527a07..c0fe81db5c8 100644
--- a/addons/crm/crm_lead_view.xml
+++ b/addons/crm/crm_lead_view.xml
@@ -162,7 +162,7 @@
                         <tree string="Communication history">
                             <field name="display_text" string="History Information"/>
                             <button
-                                string="Reply"
+                                string="Reply" attrs="{'invisible': [('history', '!=', True)]}"
                                 name="%(crm.action_crm_send_mail)d"
                                 context="{'mail':'reply', 'model': 'crm.lead', 'include_original' : True}"
                                 icon="terp-mail-replied" type="action" />
@@ -174,20 +174,26 @@
                                 <field name="email_to" widget="char" size="512"/>
                                 <field name="email_cc" widget="char" size="512"/>
                                 <field name="name" colspan="4" widget="char" size="512"/>
+                                <field name="history" invisible="1"/>
                             </group>
                             <notebook colspan="4">
                                 <page string="Details">
-                                    <field name="description" colspan="4" nolabel="1"/>
+                                    <group attrs="{'invisible': [('history', '!=', True)]}">
+                                        <field name="description" colspan="4" nolabel="1" height="250"/>
+                                        <button colspan="4"
+                                            string="Reply"
+                                            name="%(crm.action_crm_send_mail)d"
+                                            context="{'mail':'reply', 'model': 'crm.lead', 'include_original' : True}"
+                                            icon="terp-mail-replied" type="action" />
+                                    </group>
+                                    <group attrs="{'invisible': [('history', '=', True)]}">
+                                        <field name="display_text" colspan="4" nolabel="1"  height="250"/>
+                                    </group>
                                 </page>
                                 <page string="Attachments">
                                     <field name="attachment_ids" colspan="4" readonly="1" nolabel="1"/>
                                 </page>
                             </notebook>
-                            <button colspan="4"
-                                string="Reply"
-                                name="%(crm.action_crm_send_mail)d"
-                                context="{'mail':'reply', 'model': 'crm.lead', 'include_original' : True}"
-                                icon="terp-mail-replied" type="action" />
                         </form>
                     </field>
                     <button colspan="2" string="Send New Email"
diff --git a/addons/crm/crm_opportunity_view.xml b/addons/crm/crm_opportunity_view.xml
index ca094469c69..a2503f54690 100644
--- a/addons/crm/crm_opportunity_view.xml
+++ b/addons/crm/crm_opportunity_view.xml
@@ -126,7 +126,7 @@
                                 <tree string="Communication history">
                                     <field name="display_text" string="History Information"/>
                                     <button
-                                        string="Reply"
+                                        string="Reply" attrs="{'invisible': [('history', '!=', True)]}"
                                         name="%(crm.action_crm_send_mail)d"
                                         context="{'mail':'reply', 'model': 'crm.lead', 'include_original' : True}"
                                         icon="terp-mail-replied" type="action" />
@@ -138,20 +138,26 @@
                                         <field name="email_to" widget="char" size="512"/>
                                         <field name="email_cc" widget="char" size="512"/>
                                         <field name="name" colspan="4" widget="char" size="512"/>
+                                        <field name="history" invisible="1"/>
                                     </group>
                                     <notebook colspan="4">
                                         <page string="Details">
-                                            <field name="description" colspan="4" nolabel="1"/>
+                                            <group attrs="{'invisible': [('history', '!=', True)]}">
+                                                <field name="description" colspan="4" nolabel="1" height="250"/>
+                                                <button colspan="4"
+                                                    string="Reply"
+                                                    name="%(crm.action_crm_send_mail)d"
+                                                    context="{'mail':'reply', 'model': 'crm.lead', 'include_original' : True}"
+                                                    icon="terp-mail-replied" type="action" />
+                                            </group>
+                                            <group attrs="{'invisible': [('history', '=', True)]}">
+                                                <field name="display_text" colspan="4" nolabel="1"  height="250"/>
+                                            </group>
                                         </page>
                                         <page string="Attachments">
                                             <field name="attachment_ids" colspan="4" readonly="1" nolabel="1"/>
                                         </page>
                                     </notebook>
-                                    <button colspan="4"
-                                        string="Reply"
-                                        name="%(crm.action_crm_send_mail)d"
-                                        context="{'mail':'reply', 'model': 'crm.lead', 'include_original' : True}"
-                                        icon="terp-mail-replied" type="action" />
                                 </form>
                             </field>
                             <button colspan="2" string="Send New Email"
diff --git a/addons/crm/crm_view.xml b/addons/crm/crm_view.xml
index d641f012297..2e859d68dfa 100644
--- a/addons/crm/crm_view.xml
+++ b/addons/crm/crm_view.xml
@@ -554,7 +554,7 @@
 		                        <tree string="Communication history">
 		                            <field name="display_text" string="History Information"/>
 		                            <button
-		                                string="Reply"
+		                                string="Reply" attrs="{'invisible': [('history', '!=', True)]}"
 		                                name="%(crm.action_crm_send_mail)d"
 		                                context="{'mail':'reply', 'model': 'crm.case.custom', 'include_original' : True}"
 		                                icon="terp-mail-replied" type="action" />
@@ -566,20 +566,26 @@
 		                                <field name="email_to" widget="char" size="512"/>
 		                                <field name="email_cc" widget="char" size="512"/>
 		                                <field name="name" colspan="4" widget="char" size="512"/>
+		                                <field name="history" invisible="1"/>
 		                            </group>
 		                            <notebook colspan="4">
 		                                <page string="Details">
-		                                    <field name="description" colspan="4" nolabel="1"/>
+		                                    <group attrs="{'invisible': [('history', '!=', True)]}">
+		                                        <field name="description" colspan="4" nolabel="1" height="250"/>
+		                                        <button colspan="4"
+		                                            string="Reply"
+		                                            name="%(crm.action_crm_send_mail)d"
+		                                            context="{'mail':'reply', 'model': 'crm.case.custom', 'include_original' : True}"
+		                                            icon="terp-mail-replied" type="action" />
+		                                    </group>
+		                                    <group attrs="{'invisible': [('history', '=', True)]}">
+                                                <field name="display_text" colspan="4" nolabel="1" height="250"/>
+                                            </group>
 		                                </page>
 		                                <page string="Attachments">
 		                                    <field name="attachment_ids" colspan="4" readonly="1" nolabel="1"/>
 		                                </page>
 		                            </notebook>
-		                            <button colspan="4"
-		                                string="Reply"
-		                                name="%(crm.action_crm_send_mail)d"
-		                                context="{'mail':'reply', 'model': 'crm.case.custom', 'include_original' : True}"
-		                                icon="terp-mail-replied" type="action" />
 		                        </form>
 		                    </field>
                             <button colspan="2" string="Send New Email"
diff --git a/addons/crm_claim/crm_claim_view.xml b/addons/crm_claim/crm_claim_view.xml
index 8e2c4c17a33..1938b6bf056 100644
--- a/addons/crm_claim/crm_claim_view.xml
+++ b/addons/crm_claim/crm_claim_view.xml
@@ -174,7 +174,7 @@
                                             string="Reply"
                                             name="%(crm.action_crm_send_mail)d"
                                             context="{'mail':'reply', 'model': 'crm.claim', 'include_original' : True}"
-                                            icon="terp-mail-replied" type="action" />
+                                            icon="terp-mail-replied" type="action" attrs="{'invisible': [('history', '!=', True)]}" />
                                     </tree>
                                     <form string="Communication history">
                                         <group col="4" colspan="4">
@@ -183,20 +183,26 @@
                                             <field name="email_to" widget="char" size="512"/>
                                             <field name="email_cc" widget="char" size="512"/>
                                             <field name="name" colspan="4" widget="char" size="512"/>
+                                            <field name="history" invisible="1"/>
                                         </group>
                                         <notebook colspan="4">
                                             <page string="Details">
-                                                <field name="description" colspan="4" nolabel="1"/>
+                                                <group attrs="{'invisible': [('history', '!=', True)]}">
+                                                    <field name="description" colspan="4" nolabel="1" height="250"/>
+                                                    <button colspan="4"
+                                                        string="Reply"
+                                                        name="%(crm.action_crm_send_mail)d"
+                                                        context="{'mail':'reply', 'model': 'crm.claim', 'include_original' : True}"
+                                                        icon="terp-mail-replied" type="action" />
+                                                </group>
+                                                <group attrs="{'invisible': [('history', '=', True)]}">
+                                                    <field name="display_text" colspan="4" nolabel="1"  height="250"/>
+                                                </group>
                                             </page>
                                             <page string="Attachments">
                                                 <field name="attachment_ids" colspan="4" readonly="1" nolabel="1"/>
                                             </page>
                                         </notebook>
-                                        <button colspan="4"
-                                            string="Reply"
-                                            name="%(crm.action_crm_send_mail)d"
-                                            context="{'mail':'reply', 'model': 'crm.claim', 'include_original' : True}"
-                                            icon="terp-mail-replied" type="action" />
                                     </form>
                                 </field>
                                 <button colspan="4" string="Send New Email"
diff --git a/addons/crm_fundraising/crm_fundraising_view.xml b/addons/crm_fundraising/crm_fundraising_view.xml
index 6421623e386..427ec0caf38 100644
--- a/addons/crm_fundraising/crm_fundraising_view.xml
+++ b/addons/crm_fundraising/crm_fundraising_view.xml
@@ -162,7 +162,7 @@
                                 <tree string="Communication history">
                                     <field name="display_text" string="History Information"/>
                                     <button
-                                        string="Reply"
+                                        string="Reply" attrs="{'invisible': [('history', '!=', True)]}"
                                         name="%(crm.action_crm_send_mail)d"
                                         context="{'mail':'reply', 'model': 'crm.fundraising', 'include_original' : True}"
                                         icon="terp-mail-replied" type="action" />
@@ -174,20 +174,26 @@
                                         <field name="email_to" widget="char" size="512"/>
                                         <field name="email_cc" widget="char" size="512"/>
                                         <field name="name" colspan="4" widget="char" size="512"/>
+                                        <field name="history" invisible="1"/>
                                     </group>
                                     <notebook colspan="4">
                                         <page string="Details">
-                                            <field name="description" colspan="4" nolabel="1"/>
+                                            <group attrs="{'invisible': [('history', '!=', True)]}">
+                                                <field name="description" colspan="4" nolabel="1" height="250"/>
+                                                <button colspan="4"
+                                                    string="Reply"
+                                                    name="%(crm.action_crm_send_mail)d"
+                                                    context="{'mail':'reply', 'model': 'crm.fundraising', 'include_original' : True}"
+                                                    icon="terp-mail-replied" type="action" />
+                                            </group>
+                                            <group attrs="{'invisible': [('history', '=', True)]}">
+                                                <field name="display_text" colspan="4" nolabel="1"  height="250"/>
+                                            </group>
                                         </page>
                                         <page string="Attachments">
                                             <field name="attachment_ids" colspan="4" readonly="1" nolabel="1"/>
                                         </page>
                                     </notebook>
-                                    <button colspan="4"
-                                        string="Reply"
-                                        name="%(crm.action_crm_send_mail)d"
-                                        context="{'mail':'reply', 'model': 'crm.fundraising', 'include_original' : True}"
-                                        icon="terp-mail-replied" type="action" />
                                 </form>
                             </field>
                             <button colspan="4" string="Send New Email"
diff --git a/addons/crm_helpdesk/crm_helpdesk_view.xml b/addons/crm_helpdesk/crm_helpdesk_view.xml
index d840d9430fe..4a62e8b7b3a 100644
--- a/addons/crm_helpdesk/crm_helpdesk_view.xml
+++ b/addons/crm_helpdesk/crm_helpdesk_view.xml
@@ -99,7 +99,7 @@
                                 <tree string="Communication history">
                                     <field name="display_text" string="History Information"/>
                                     <button
-                                        string="Reply"
+                                        string="Reply" attrs="{'invisible': [('history', '!=', True)]}"
                                         name="%(crm.action_crm_send_mail)d"
                                         context="{'mail':'reply', 'model': 'crm.helpdesk', 'include_original' : True}"
                                         icon="terp-mail-replied" type="action" />
@@ -111,20 +111,26 @@
                                         <field name="email_to" widget="char" size="512"/>
                                         <field name="email_cc" widget="char" size="512"/>
                                         <field name="name" colspan="4" widget="char" size="512"/>
+                                        <field name="history" invisible="1"/>
                                     </group>
                                     <notebook colspan="4">
                                         <page string="Details">
-                                            <field name="description" colspan="4" nolabel="1"/>
+                                            <group attrs="{'invisible': [('history', '!=', True)]}">
+                                                <field name="description" colspan="4" nolabel="1" height="250"/>
+                                                <button colspan="4"
+                                                    string="Reply"
+                                                    name="%(crm.action_crm_send_mail)d"
+                                                    context="{'mail':'reply', 'model': 'crm.helpdesk', 'include_original' : True}"
+                                                    icon="terp-mail-replied" type="action" />
+                                             </group>
+                                            <group attrs="{'invisible': [('history', '=', True)]}">
+                                                <field name="display_text" colspan="4" nolabel="1"  height="250"/>
+                                            </group>
                                         </page>
                                         <page string="Attachments">
                                             <field name="attachment_ids" colspan="4" readonly="1" nolabel="1"/>
                                         </page>
                                     </notebook>
-                                    <button colspan="4"
-                                        string="Reply"
-                                        name="%(crm.action_crm_send_mail)d"
-                                        context="{'mail':'reply', 'model': 'crm.helpdesk', 'include_original' : True}"
-                                        icon="terp-mail-replied" type="action" />
                                 </form>
                             </field>
                             <button colspan="4" string="Send New Email"
diff --git a/addons/event/event_view.xml b/addons/event/event_view.xml
index fcabd668146..4c57157ff71 100644
--- a/addons/event/event_view.xml
+++ b/addons/event/event_view.xml
@@ -376,7 +376,7 @@
                                 <tree string="Communication history">
                                     <field name="display_text" string="History Information"/>
                                     <button
-                                        string="Reply"
+                                        string="Reply" attrs="{'invisible': [('history', '!=', True)]}"
                                         name="%(crm.action_crm_send_mail)d"
                                         context="{'mail':'reply', 'model': 'event.registration', 'include_original' : True}"
                                         icon="terp-mail-replied" type="action" />
@@ -388,20 +388,26 @@
                                         <field name="email_to" widget="char" size="512"/>
                                         <field name="email_cc" widget="char" size="512"/>
                                         <field name="name" colspan="4" widget="char" size="512"/>
+                                        <field name="history" invisible="1"/>
                                     </group>
                                     <notebook colspan="4">
                                         <page string="Details">
-                                            <field name="description" colspan="4" nolabel="1"/>
+                                            <group attrs="{'invisible': [('history', '!=', True)]}">
+                                                <field name="description" colspan="4" nolabel="1" height="250"/>
+                                                <button colspan="4"
+                                                    string="Reply"
+                                                    name="%(crm.action_crm_send_mail)d"
+                                                    context="{'mail':'reply', 'model': 'event.registration', 'include_original' : True}"
+                                                    icon="terp-mail-replied" type="action" />
+                                            </group>
+                                            <group attrs="{'invisible': [('history', '=', True)]}">
+                                                <field name="display_text" colspan="4" nolabel="1"  height="250"/>
+                                            </group>
                                         </page>
                                         <page string="Attachments">
                                             <field name="attachment_ids" colspan="4" readonly="1" nolabel="1"/>
                                         </page>
                                     </notebook>
-                                    <button colspan="4"
-                                        string="Reply"
-                                        name="%(crm.action_crm_send_mail)d"
-                                        context="{'mail':'reply', 'model': 'event.registration', 'include_original' : True}"
-                                        icon="terp-mail-replied" type="action" />
                                 </form>
                             </field>
                               <button colspan="4" string="Send New Email"
diff --git a/addons/hr_recruitment/hr_recruitment_view.xml b/addons/hr_recruitment/hr_recruitment_view.xml
index 10bf9a3a2b7..5056a0c741e 100644
--- a/addons/hr_recruitment/hr_recruitment_view.xml
+++ b/addons/hr_recruitment/hr_recruitment_view.xml
@@ -158,7 +158,7 @@
                             <tree string="Communication history">
                                 <field name="display_text" string="History Information"/>
                                 <button
-                                    string="Reply"
+                                    string="Reply" attrs="{'invisible': [('history', '!=', True)]}"
                                     name="%(crm.action_crm_send_mail)d"
                                     context="{'mail':'reply', 'model': 'hr.applicant', 'include_original' : True}"
                                     icon="terp-mail-replied" type="action" />
@@ -170,20 +170,26 @@
                                     <field name="email_to" widget="char" size="512"/>
                                     <field name="email_cc" widget="char" size="512"/>
                                     <field name="name" colspan="4" widget="char" size="512"/>
+                                    <field name="history" invisible="1"/>
                                 </group>
                                 <notebook colspan="4">
                                     <page string="Details">
-                                        <field name="description" colspan="4" nolabel="1"/>
+                                        <group attrs="{'invisible': [('history', '!=', True)]}">
+                                            <field name="description" colspan="4" nolabel="1" height="250"/>
+                                            <button colspan="4"
+                                                string="Reply"
+                                                name="%(crm.action_crm_send_mail)d"
+                                                context="{'mail':'reply', 'model': 'hr.applicant', 'include_original' : True}"
+                                                icon="terp-mail-replied" type="action" />
+                                        </group>
+                                        <group attrs="{'invisible': [('history', '=', True)]}">
+                                            <field name="display_text" colspan="4" nolabel="1"  height="250"/>
+                                        </group>
                                     </page>
                                     <page string="Attachments">
                                         <field name="attachment_ids" colspan="4" readonly="1" nolabel="1"/>
                                     </page>
                                 </notebook>
-                                <button colspan="4"
-                                    string="Reply"
-                                    name="%(crm.action_crm_send_mail)d"
-                                    context="{'mail':'reply', 'model': 'hr.applicant', 'include_original' : True}"
-                                    icon="terp-mail-replied" type="action" />
                             </form>
                         </field>
                        <button colspan="2" string="Send New Email"
diff --git a/addons/project_issue/project_issue_view.xml b/addons/project_issue/project_issue_view.xml
index ced7f127995..78e27854c09 100644
--- a/addons/project_issue/project_issue_view.xml
+++ b/addons/project_issue/project_issue_view.xml
@@ -79,7 +79,7 @@
                                 <tree string="Communication history">
                                     <field name="display_text" string="History Information"/>
                                     <button
-                                        string="Reply"
+                                        string="Reply" attrs="{'invisible': [('history', '!=', True)]}"
                                         name="%(crm.action_crm_send_mail)d"
                                         context="{'mail':'reply', 'model': 'project.issue', 'include_original' : True}"
                                         icon="terp-mail-replied" type="action" />
@@ -91,20 +91,26 @@
                                         <field name="email_to" widget="char" size="512"/>
                                         <field name="email_cc" widget="char" size="512"/>
                                         <field name="name" colspan="4" widget="char" size="512"/>
+                                        <field name="history" invisible="1"/>
                                     </group>
                                     <notebook colspan="4">
                                         <page string="Details">
-                                            <field name="description" colspan="4" nolabel="1"/>
+                                            <group attrs="{'invisible': [('history', '!=', True)]}">
+                                                <field name="description" colspan="4" nolabel="1" height="250"/>
+                                                <button colspan="4"
+                                                    string="Reply"
+                                                    name="%(crm.action_crm_send_mail)d"
+                                                    context="{'mail':'reply', 'model': 'project.issue', 'include_original' : True}"
+                                                    icon="terp-mail-replied" type="action" />
+                                            </group>
+                                            <group attrs="{'invisible': [('history', '=', True)]}">
+                                                <field name="display_text" colspan="4" nolabel="1"  height="250"/>
+                                            </group>
                                         </page>
                                         <page string="Attachments">
                                             <field name="attachment_ids" colspan="4" readonly="1" nolabel="1"/>
                                         </page>
                                     </notebook>
-                                    <button colspan="4"
-                                        string="Reply"
-                                        name="%(crm.action_crm_send_mail)d"
-                                        context="{'mail':'reply', 'model': 'project.issue', 'include_original' : True}"
-                                        icon="terp-mail-replied" type="action" />
                                 </form>
                             </field>
                            <separator colspan="4"/>