diff --git a/addons/marketing_campaign/marketing_campaign.py b/addons/marketing_campaign/marketing_campaign.py
index b04bd69469a..30d11f95b61 100644
--- a/addons/marketing_campaign/marketing_campaign.py
+++ b/addons/marketing_campaign/marketing_campaign.py
@@ -325,8 +325,8 @@ class marketing_campaign_activity(osv.osv):
 
     _action_types = [
         ('email', 'E-mail'),
-        ('paper', 'Paper'),
-        ('action', 'Action'),
+        ('report', 'Report'),
+        ('action', 'Custom Action'),
         # TODO implement the subcampaigns.
         # TODO implement the subcampaign out. disallow out transitions from
         # subcampaign activities ?
@@ -346,13 +346,17 @@ class marketing_campaign_activity(osv.osv):
                                  "The expression may use the following [browsable] variables:\n"
                                  "   - activity: the campaign activity\n"
                                  "   - workitem: the campaign workitem\n" 
-                                 "   - object: the object this campaign item represents\n"
+                                 "   - resource: the resource object this campaign item represents\n"
                                  "   - transitions: list of campaign transitions outgoing from this activity\n"
                                  "...- re: Python regular expression module"),
         'type': fields.selection(_action_types, 'Type', required=True,
-                                  help="Describe type of action to be performed on the Activity.Eg : Send email,Send paper.."),
-        'email_template_id': fields.many2one('email.template','The e-mail to send when this activity is activated'),
-        'report_id': fields.many2one('ir.actions.report.xml', 'The report to generate when this activity is activated', ),
+                                  help="""The type of action to execute when an item enters this activity, such as:
+   - Email: send an email using a predefined email template
+   - Report: print an existing Report defined on the resource item and save it into a specific directory
+   - Custom Action: execute a predefined action, e.g. to modify the fields of the resource record
+  """),
+        'email_template_id': fields.many2one('email.template', "Email Template", help='The e-mail to send when this activity is activated'),
+        'report_id': fields.many2one('ir.actions.report.xml', "Report", help='The report to generate when this activity is activated', ),
         'report_directory_id': fields.many2one('document.directory','Directory',
                                 help="This folder is used to store the generated reports"),
         'server_action_id': fields.many2one('ir.actions.server', string='Action',
@@ -363,11 +367,11 @@ class marketing_campaign_activity(osv.osv):
         'from_ids': fields.one2many('marketing.campaign.transition',
                                             'activity_to_id',
                                             'Previous Activities'),
-        'variable_cost': fields.float('Variable Cost'),
-        'revenue': fields.float('Revenue'),
+        'variable_cost': fields.float('Variable Cost', help="Set a variable cost if you consider that every campaign item that has reached this point has entailed a certain cost. You can get cost statistics in the Reporting section"),
+        'revenue': fields.float('Revenue', help="Set an expected revenue if you consider that every campaign item that has reached this point has generated a certain revenue. You can get revenue statistics in the Reporting section"),
         'signal': fields.char('Signal', size=128,
                               help='An activity with a signal can be called programmatically. Be careful, the workitem is always created when a signal is sent'),
-        'keep_if_condition_not_met': fields.boolean('Keep as cancelled when condition not met',
+        'keep_if_condition_not_met': fields.boolean('Keep as cancelled',
                                                     help="By activating this option, workitems that aren't executed because the condition is not met are marked as cancelled instead of being deleted.")
     }
 
@@ -564,6 +568,7 @@ class marketing_campaign_workitem(osv.osv):
             'activity': activity,
             'workitem': workitem,
             'object': object_id,
+            'resource': object_id, 
             'transitions': activity.to_ids,
             're': re,
         }
@@ -688,7 +693,7 @@ class marketing_campaign_workitem(osv.osv):
                                  wi_obj.res_id)
             }
 
-        elif wi_obj.activity_id.type == 'paper':
+        elif wi_obj.activity_id.type == 'report':
             datas = {
                 'ids': [wi_obj.res_id],
                 'model': wi_obj.object_id.model
diff --git a/addons/marketing_campaign/marketing_campaign_view.xml b/addons/marketing_campaign/marketing_campaign_view.xml
index 2ebb10c3eb3..9e0b4e8e271 100644
--- a/addons/marketing_campaign/marketing_campaign_view.xml
+++ b/addons/marketing_campaign/marketing_campaign_view.xml
@@ -235,36 +235,38 @@
         <field name="type">form</field>
         <field name="arch" type="xml">
             <form string="Activities">
-                <field name="object_id" invisible="1"/>
-                <separator string="Activity Definition" colspan="4"/>
-                <field name="name" select="1" colspan='4' />
-                <field name="signal"/>
-                <field name="start"/>
-                <field name="variable_cost" select="1"/>
+                <group colspan='2' col='2'>
+                    <separator string="Activity" colspan="4"/>
+                    <field name="name" select="1" colspan='4' />
+                    <field name="signal" groups="base.group_extended"/>
+                    <field name="start"/>
+                    <field name="object_id" invisible="1"/>
+                </group>
+                <group colspan='2' col='2'>
+                    <separator string="Cost / Revenue" colspan="4"/>
+                    <field name="variable_cost"/>
+                    <field name="revenue"/>
+                </group>
                 <newline/>
-
-                <separator string="Action" colspan="4"/>
+                <group colspan='4' col='2'>
+                    <separator string="Condition" colspan="4"/>
+                    <field name="condition" widget="char" colspan="2"/>
+                    <field name="keep_if_condition_not_met"/>
+                </group>
                 <group colspan='4' col='4'>
-                    <group colspan="4" col="6">
-                        <field name="condition" colspan="5" widget="char"/>
-                        <group col='2'>
-                            <field name="keep_if_condition_not_met" />
-                        </group>
-                    </group>
-                    <field name="type" width='100'/>
+                    <separator string="Action" colspan="4"/>
+                    <field name="type"/>
                     <group colspan='2' col='1'>
                         <field name="email_template_id" attrs="{'required':[('type','=','email')], 'invisible':[('type','!=','email')]}"
                                context="{'default_object_name':object_id}" />
-                        <group attrs="{'invisible':[('type','!=','paper')]}" >
-                            <field name="report_id" attrs="{'required':[('type','=','paper')]}" context="{'object_id':object_id}"/>
-                            <field name="report_directory_id" attrs="{'required':[('type','=','paper')]}" />
+                        <group attrs="{'invisible':[('type','!=','report')]}" >
+                            <field name="report_id" attrs="{'required':[('type','=','report')]}" context="{'object_id':object_id}"/>
+                            <field name="report_directory_id" attrs="{'required':[('type','=','report')]}" />
                         </group>
                         <field name="server_action_id" attrs="{'required':[('type','=','action')],'invisible':[('type','!=','action')]}" domain="[('model_id','=',object_id)]" />
                     </group>
                 </group>
-                <newline/>
-
-                <group colspan="4" col="2" expand="1">
+                <group colspan="4" col="2">
                     <separator string="Transitions" colspan="2"/>
                     <field name="from_ids" nolabel="1" mode="tree,form" default_get="{'default_activity_to_id': active_id}">
                         <tree string="Incoming Transitions" editable="bottom">
diff --git a/addons/marketing_campaign_crm_demo/marketing_campaign_demo.xml b/addons/marketing_campaign_crm_demo/marketing_campaign_demo.xml
index 88b12552d60..ee11fbcdb75 100644
--- a/addons/marketing_campaign_crm_demo/marketing_campaign_demo.xml
+++ b/addons/marketing_campaign_crm_demo/marketing_campaign_demo.xml
@@ -191,7 +191,7 @@
             <field name="server_action_id" ref="action_dummy"/>
             <field model="marketing.campaign" name="campaign_id" ref="marketing_campaign_openerpondemandfreetrial0"/>
             <field name="report_directory_id" ref="document_directory_campaign1"/>
-            <field name="type">paper</field>
+            <field name="type">report</field>
             <field eval="1" name="start"/>
             <field name="report_id" ref="mc_crm_lead_demo_report"/>
         </record>
@@ -220,7 +220,7 @@
            <field name="server_action_id" ref="action_dummy"/>
             <field model="marketing.campaign" name="campaign_id" ref="marketing_campaign_openerpondemandfreetrial0"/>
             <field name="report_directory_id" ref="document_directory_campaign1"/>
-            <field name="type">paper</field>
+            <field name="type">report</field>
             <field name="report_id" ref="mc_crm_lead_demo_report"/>
         </record>