diff --git a/account_spread_cost_revenue/models/account_spread.py b/account_spread_cost_revenue/models/account_spread.py
index 42dcba1bf..53208d9cd 100644
--- a/account_spread_cost_revenue/models/account_spread.py
+++ b/account_spread_cost_revenue/models/account_spread.py
@@ -58,16 +58,16 @@ class AccountSpread(models.Model):
         compute='_compute_deprecated_accounts')
     unspread_amount = fields.Float(
         digits=dp.get_precision('Account'),
-        compute='_compute_spread_amount')
+        compute='_compute_amounts')
     unposted_amount = fields.Float(
         digits=dp.get_precision('Account'),
-        compute='_compute_spread_amount')
+        compute='_compute_amounts')
     posted_amount = fields.Float(
         digits=dp.get_precision('Account'),
-        compute='_compute_spread_amount')
+        compute='_compute_amounts')
     total_amount = fields.Float(
         digits=dp.get_precision('Account'),
-        compute='_compute_spread_amount')
+        compute='_compute_amounts')
     line_ids = fields.One2many(
         'account.spread.line',
         'spread_id',
@@ -88,8 +88,8 @@ class AccountSpread(models.Model):
     invoice_line_id = fields.Many2one(
         'account.invoice.line',
         string='Invoice line',
-        compute='_compute_invoice',
-        inverse='_inverse_invoice',
+        compute='_compute_invoice_line',
+        inverse='_inverse_invoice_line',
         store=True)
     invoice_id = fields.Many2one(
         related='invoice_line_id.invoice_id',
@@ -124,8 +124,8 @@ class AccountSpread(models.Model):
             company_id = res['company_id']
         default_journal = self.env['account.journal'].search([
             ('type', '=', 'general'),
-            ('company_id', '=', company_id)],
-            limit=1)
+            ('company_id', '=', company_id)
+        ], limit=1)
         if 'journal_id' not in res and default_journal:
             res['journal_id'] = default_journal.id
         return res
@@ -139,14 +139,14 @@ class AccountSpread(models.Model):
                 spread.spread_type = 'purchase'
 
     @api.depends('invoice_line_ids', 'invoice_line_ids.invoice_id')
-    def _compute_invoice(self):
+    def _compute_invoice_line(self):
         for spread in self:
             invoice_lines = spread.invoice_line_ids
             line = invoice_lines and invoice_lines[0] or False
             spread.invoice_line_id = line
 
     @api.multi
-    def _inverse_invoice(self):
+    def _inverse_invoice_line(self):
         for spread in self:
             invoice_line = spread.invoice_line_id
             spread.write({
@@ -154,7 +154,7 @@ class AccountSpread(models.Model):
             })
 
     @api.multi
-    def _compute_spread_amount(self):
+    def _compute_amounts(self):
         for spread in self:
             moves_amount = 0.0
             posted_amount = 0.0
@@ -249,7 +249,7 @@ class AccountSpread(models.Model):
         return 1
 
     @api.multi
-    def _init_spread_line_date(self, posted_line_ids):
+    def _init_line_date(self, posted_line_ids):
         """Calculates the initial spread date. This method
         is used by "def _compute_spread_board()" method.
         """
@@ -265,22 +265,18 @@ class AccountSpread(models.Model):
         return spread_date
 
     @api.multi
-    def _next_line_date(self, month_day, spread_date):
+    def _next_line_date(self, month_day, date):
         """Calculates the next spread date. This method
         is used by "def _compute_spread_board()" method.
         """
         self.ensure_one()
         months = self._compute_spread_period_duration()
-        spread_date = spread_date + relativedelta(months=months)
+        date = date + relativedelta(months=months)
         # get the last day of the month
         if month_day > 28:
-            max_day_in_month = calendar.monthrange(
-                spread_date.year, spread_date.month
-            )[1]
-            spread_date = spread_date.replace(
-                day=min(max_day_in_month, month_day)
-            )
-        return spread_date
+            max_day_in_month = calendar.monthrange(date.year, date.month)[1]
+            date = date.replace(day=min(max_day_in_month, month_day))
+        return date
 
     @api.multi
     def _compute_spread_board(self):
@@ -302,7 +298,7 @@ class AccountSpread(models.Model):
         if self.unposted_amount != 0.0:
             unposted_amount = self.unposted_amount
 
-            spread_date = self._init_spread_line_date(posted_line_ids)
+            spread_date = self._init_line_date(posted_line_ids)
 
             month_day = spread_date.day
             number_of_periods = self._get_number_of_periods(month_day)
@@ -343,13 +339,11 @@ class AccountSpread(models.Model):
         return fields.Date.to_string(spread_date + relativedelta(day=31))
 
     @api.multi
-    def _compute_board_amount(self, sequence, unposted_amount,
-                              undone_dotation_number):
+    def _compute_board_amount(self, sequence, amount, number_of_periods):
         """Calculates the amount for the spread lines."""
         self.ensure_one()
-        amount = unposted_amount
         amount_to_spread = self.total_amount
-        if sequence != undone_dotation_number:
+        if sequence != number_of_periods:
             amount = amount_to_spread / self.period_number
             if sequence == 1:
                 date = fields.Datetime.from_string(self.spread_date)
diff --git a/account_spread_cost_revenue/models/account_spread_line.py b/account_spread_cost_revenue/models/account_spread_line.py
index 31d5b3843..47ba06560 100644
--- a/account_spread_cost_revenue/models/account_spread_line.py
+++ b/account_spread_cost_revenue/models/account_spread_line.py
@@ -15,9 +15,9 @@ class AccountInvoiceSpreadLine(models.Model):
     amount = fields.Float(digits=dp.get_precision('Account'), required=True)
     date = fields.Date(required=True)
     spread_id = fields.Many2one(
-        'account.spread', string='Spread', ondelete='cascade')
+        'account.spread', string='Spread Board', ondelete='cascade')
     move_id = fields.Many2one(
-        'account.move', string='Spread Entry', readonly=True)
+        'account.move', string='Journal Entry', readonly=True)
 
     @api.multi
     def create_and_reconcile_moves(self):
diff --git a/account_spread_cost_revenue/readme/HISTORY.rst b/account_spread_cost_revenue/readme/HISTORY.rst
new file mode 100644
index 000000000..07877aaf4
--- /dev/null
+++ b/account_spread_cost_revenue/readme/HISTORY.rst
@@ -0,0 +1,5 @@
+11.0.1.0.0
+~~~~~~~~~~
+
+* [ADD] Module account_spread_cost_revenue.
+  (`#715 <https://github.com/OCA/account-financial-tools/pull/715>`_)
diff --git a/account_spread_cost_revenue/readme/ROADMAP.rst b/account_spread_cost_revenue/readme/ROADMAP.rst
index 82177b55c..2999cff1d 100644
--- a/account_spread_cost_revenue/readme/ROADMAP.rst
+++ b/account_spread_cost_revenue/readme/ROADMAP.rst
@@ -1 +1,2 @@
 * Verify last day of month
+* Add help in fields definition
diff --git a/account_spread_cost_revenue/security/ir.model.access.csv b/account_spread_cost_revenue/security/ir.model.access.csv
index 380f429b4..a4e7d04ac 100644
--- a/account_spread_cost_revenue/security/ir.model.access.csv
+++ b/account_spread_cost_revenue/security/ir.model.access.csv
@@ -1,6 +1,6 @@
 id,name,model_id:id,group_id:id,perm_read,perm_write,perm_create,perm_unlink
 access_account_spread_cost_revenue_full,Full access on account.spread,model_account_spread,account.group_account_manager,1,1,1,1
-access_account_spread_cost_revenue_read,Read access on account.spread,model_account_spread,base.group_user,1,0,0,0
+access_account_spread_cost_revenue_read,Read access on account.spread,model_account_spread,account.group_account_user,1,0,0,0
 access_account_spread_cost_revenue_line_full,Full access on account.spread.line,model_account_spread_line,account.group_account_manager,1,1,1,1
 access_account_spread_cost_revenue_line_read,Read access on account.spread.line,model_account_spread_line,account.group_account_user,1,0,0,0
 access_account_spread_cost_revenue_template_full,Full access on account.spread.template,model_account_spread_template,account.group_account_manager,1,1,1,1
diff --git a/account_spread_cost_revenue/views/account_invoice.xml b/account_spread_cost_revenue/views/account_invoice.xml
index 134bad442..9a86f04a4 100644
--- a/account_spread_cost_revenue/views/account_invoice.xml
+++ b/account_spread_cost_revenue/views/account_invoice.xml
@@ -6,7 +6,7 @@
         <field name="inherit_id" ref="account.invoice_supplier_form"/>
         <field name="arch" type="xml">
             <xpath expr="//field[@name='invoice_line_ids']/tree/field[@name='quantity']" position="before">
-                <field name="spread_check" widget="spread_line_widget"/>
+                <field name="spread_check" widget="spread_line_widget" groups="account.group_account_user,account.group_account_manager"/>
             </xpath>
         </field>
     </record>
@@ -16,7 +16,7 @@
         <field name="inherit_id" ref="account.invoice_form"/>
         <field name="arch" type="xml">
             <xpath expr="//field[@name='invoice_line_ids']/tree/field[@name='quantity']" position="before">
-                <field name="spread_check" widget="spread_line_widget"/>
+                <field name="spread_check" widget="spread_line_widget" groups="account.group_account_user,account.group_account_manager"/>
             </xpath>
         </field>
     </record>
diff --git a/account_spread_cost_revenue/views/account_spread.xml b/account_spread_cost_revenue/views/account_spread.xml
index 40428882d..f40e65c9d 100644
--- a/account_spread_cost_revenue/views/account_spread.xml
+++ b/account_spread_cost_revenue/views/account_spread.xml
@@ -7,9 +7,9 @@
             <form>
                 <header>
                     <button name="compute_spread_board" type="object" string="Recalculate unposted lines" class="oe_highlight" attrs="{'invisible': [('debit_account_id', '=', False)]}" />
-                    <button name="action_recalculate_spread" type="object" string="Recalculate entire spread" attrs="{'invisible': [('debit_account_id', '=', False)]}" groups="account.group_account_user" />
-                    <button name="action_undo_spread" type="object" string="Undo spread" attrs="{'invisible': [('line_ids', '=', [])]}" groups="account.group_account_user" />
-                    <button name="action_unlink_invoice_line" type="object" string="Unlink Invoice Line" attrs="{'invisible': [('invoice_line_id', '=', False)]}" groups="account.group_account_user" />
+                    <button name="action_recalculate_spread" type="object" string="Recalculate entire spread" attrs="{'invisible': [('debit_account_id', '=', False)]}" groups="account.group_account_manager" />
+                    <button name="action_undo_spread" type="object" string="Undo spread" attrs="{'invisible': [('line_ids', '=', [])]}" groups="account.group_account_manager" />
+                    <button name="action_unlink_invoice_line" type="object" string="Unlink Invoice Line" attrs="{'invisible': [('invoice_line_id', '=', False)]}" groups="account.group_account_manager" />
                 </header>
                 <sheet>
                     <div class="oe_button_box">
@@ -95,11 +95,11 @@
                                     <field name="amount" attrs="{'readonly':[('move_id','!=',False)]}" sum="Total"/>
                                     <field name="date" readonly="1"/>
                                     <field name="move_id" readonly="1"/>
-                                    <button name="create_move" icon="fa fa-play" string="Create Move" type="object" groups="account.group_account_user"
+                                    <button name="create_move" icon="fa fa-play" string="Create Move" type="object" groups="account.group_account_manager"
                                             attrs="{'invisible':['|',('move_id','!=',False)]}"/>
                                     <button name="open_move" icon="fa fa-plus-square-o" string="View Move" type="object"
                                             attrs="{'invisible':[('move_id','=',False)]}"/>
-                                    <button name="unlink_move" icon="fa fa-times" string="Delete Move" type="object" confirm="This will delete the move. Are you sure ?" groups="account.group_account_user"
+                                    <button name="unlink_move" icon="fa fa-times" string="Delete Move" type="object" confirm="This will delete the move. Are you sure ?" groups="account.group_account_manager"
                                             attrs="{'invisible':[('move_id','=',False)]}"/>
                                 </tree>
                             </field>
diff --git a/account_spread_cost_revenue/views/account_spread_template.xml b/account_spread_cost_revenue/views/account_spread_template.xml
index 24505764a..b51a9d1e0 100644
--- a/account_spread_cost_revenue/views/account_spread_template.xml
+++ b/account_spread_cost_revenue/views/account_spread_template.xml
@@ -50,6 +50,6 @@
     <menuitem id="menu_action_account_spread_template_form"
               parent="account.account_account_menu"
               action="action_account_spread_template_form"
-              groups="account.group_account_user"/>
+              groups="account.group_account_manager"/>
 
 </odoo>
diff --git a/account_spread_cost_revenue/views/res_company.xml b/account_spread_cost_revenue/views/res_company.xml
index 8e726ab62..00230e148 100644
--- a/account_spread_cost_revenue/views/res_company.xml
+++ b/account_spread_cost_revenue/views/res_company.xml
@@ -6,7 +6,7 @@
         <field name="inherit_id" ref="base.view_company_form" />
         <field name="arch" type="xml">
             <xpath expr="//notebook">
-                <page name="account_spread_cost_revenue" string="Account Spread" groups="account.group_account_user">
+                <page name="account_spread_cost_revenue" string="Account Spread" groups="account.group_account_manager">
                     <group>
                         <group string="Default Spread Accounts">
                             <field name="default_spread_revenue_account_id" />