diff --git a/addons/crm/crm_lead.py b/addons/crm/crm_lead.py
index 23b1af57b28..8445c8f522d 100644
--- a/addons/crm/crm_lead.py
+++ b/addons/crm/crm_lead.py
@@ -41,6 +41,25 @@ class crm_lead(crm_case, osv.osv):
     _description = "Lead"
     _order = "date_action, priority, id desc"
     _inherit = ['mailgate.thread','res.partner.address']
+    
+    def fields_view_get(self, cr, uid, view_id=None, view_type='form',
+                            context=None, toolbar=False, submenu=False):
+            """
+             Changes the view dynamically
+             @param self: The object pointer.
+             @param cr: A database cursor
+             @param uid: ID of the user currently logged in
+             @param context: A standard dictionary
+             @return: New arch of view.
+            """
+            if not context:
+                context={}
+            res = super(crm_lead, self).fields_view_get(cr, uid, view_id=view_id, view_type=view_type, context=context, toolbar=toolbar,submenu=False)
+            if view_type == 'form':
+               if res['toolbar']['action'] and res['toolbar']['action'][0]['res_model']=='crm.merge.opportunity':
+                   res['toolbar']['action']=[]
+            return res
+
     def _compute_day(self, cr, uid, ids, fields, args, context={}):
         """
         @param cr: the current row, from the database cursor,
diff --git a/addons/purchase/purchase.py b/addons/purchase/purchase.py
index 1522c4543f3..af046f23760 100644
--- a/addons/purchase/purchase.py
+++ b/addons/purchase/purchase.py
@@ -37,6 +37,25 @@ from osv.orm import browse_record, browse_null
 # Model definition
 #
 class purchase_order(osv.osv):
+    
+    def fields_view_get(self, cr, uid, view_id=None, view_type='form',
+                            context=None, toolbar=False, submenu=False):
+            """
+             Changes the view dynamically
+             @param self: The object pointer.
+             @param cr: A database cursor
+             @param uid: ID of the user currently logged in
+             @param context: A standard dictionary
+             @return: New arch of view.
+            """
+            if not context:
+                context={}
+            res = super(purchase_order, self).fields_view_get(cr, uid, view_id=view_id, view_type=view_type, context=context, toolbar=toolbar,submenu=False)
+            if view_type == 'form':
+               if res['toolbar']['action'] and res['toolbar']['action'][0]['res_model']=='purchase.order.group':
+                   res['toolbar']['action']=[]
+            return res
+             
     def _calc_amount(self, cr, uid, ids, prop, unknow_none, unknow_dict):
         res = {}
         for order in self.browse(cr, uid, ids):
@@ -44,7 +63,7 @@ class purchase_order(osv.osv):
             for oline in order.order_line:
                 res[order.id] += oline.price_unit * oline.product_qty
         return res
-
+         
     def _amount_all(self, cr, uid, ids, field_name, arg, context=None):
         res = {}
         cur_obj=self.pool.get('res.currency')
diff --git a/addons/sale/sale.py b/addons/sale/sale.py
index 8a26ef6ebba..88ee8b5af17 100644
--- a/addons/sale/sale.py
+++ b/addons/sale/sale.py
@@ -54,7 +54,25 @@ def _incoterm_get(self, cr, uid, context=None):
 class sale_order(osv.osv):
     _name = "sale.order"
     _description = "Sale Order"
-
+    
+    def fields_view_get(self, cr, uid, view_id=None, view_type='form',
+                            context=None, toolbar=False, submenu=False):
+            """
+             Changes the view dynamically
+             @param self: The object pointer.
+             @param cr: A database cursor
+             @param uid: ID of the user currently logged in
+             @param context: A standard dictionary
+             @return: New arch of view.
+            """
+            if not context:
+                context={}
+            res = super(sale_order, self).fields_view_get(cr, uid, view_id=view_id, view_type=view_type, context=context, toolbar=toolbar,submenu=False)
+            if view_type == 'form':
+               if res['toolbar']['action'] and res['toolbar']['action'][0]['res_model']=='sale.make.invoice':
+                   res['toolbar']['action']=[]
+            return res
+    
     def copy(self, cr, uid, id, default=None, context=None):
         if context is None:
             context = {}
diff --git a/addons/stock/stock.py b/addons/stock/stock.py
index 1c5ee23a0dc..fd4eb1ca036 100644
--- a/addons/stock/stock.py
+++ b/addons/stock/stock.py
@@ -2371,6 +2371,24 @@ class stock_inventory(osv.osv):
         'state': 'draft',
         'company_id': lambda self,cr,uid,c: self.pool.get('res.company')._company_default_get(cr, uid, 'stock.inventory', context=c)
     }
+    
+    def fields_view_get(self, cr, uid, view_id=None, view_type='form',
+                            context=None, toolbar=False, submenu=False):
+            """
+             Changes the view dynamically
+             @param self: The object pointer.
+             @param cr: A database cursor
+             @param uid: ID of the user currently logged in
+             @param context: A standard dictionary
+             @return: New arch of view.
+            """
+            if not context:
+                context={}
+            res = super(stock_inventory, self).fields_view_get(cr, uid, view_id=view_id, view_type=view_type, context=context, toolbar=toolbar,submenu=False)
+            if view_type == 'form':
+               if res['toolbar']['action'] and res['toolbar']['action'][0]['res_model']=='stock.fill.inventory':
+                   res['toolbar']['action']=[]
+            return res
 
     def _inventory_line_hook(self, cr, uid, inventory_line, move_vals):
         """ Creates a stock move from an inventory line