diff --git a/web_x2m_defaults_from_previous/README.rst b/web_x2m_defaults_from_previous/README.rst
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+.. image:: https://img.shields.io/badge/licence-AGPL--3-blue.svg
+    :target: http://www.gnu.org/licenses/agpl-3.0-standalone.html
+    :alt: License: AGPL-3
+
+===============
+x2many defaults
+===============
+
+This module was written to allow you to use the previous line's input as defaults for the next line you add.
+
+Usage
+=====
+
+#. on a x2many field, say ``options="{'web_x2m_defaults_from_previous': ['field1', 'field2']}"``
+#. after the first line of input, succeeding lines will have the last input's values as default
+#. demo data adds this for the ACL list field in the groups form
+
+.. image:: https://odoo-community.org/website/image/ir.attachment/5784_f2813bd/datas
+    :alt: Try me on Runbot
+    :target: https://runbot.odoo-community.org/runbot/162/8.0
+
+Known issues / Roadmap
+======================
+
+* many2many fields are not yet supported
+
+Bug Tracker
+===========
+
+Bugs are tracked on `GitHub Issues
+<https://github.com/OCA/web/issues>`_. In case of trouble, please
+check there if your issue has already been reported. If you spotted it first,
+help us smashing it by providing a detailed and welcomed feedback.
+
+Credits
+=======
+
+Images
+------
+
+* Odoo Community Association: `Icon <https://github.com/OCA/maintainer-tools/blob/master/template/module/static/description/icon.svg>`_.
+
+Contributors
+------------
+
+* Holger Brunn <hbrunn@therp.nl>
+
+Do not contact contributors directly about help with questions or problems concerning this addon, but use the `community mailing list <mailto:community@mail.odoo.com>`_ or the `appropriate specialized mailinglist <https://odoo-community.org/groups>`_ for help, and the bug tracker linked in `Bug Tracker`_ above for technical issues.
+
+Maintainer
+----------
+
+.. image:: https://odoo-community.org/logo.png
+   :alt: Odoo Community Association
+   :target: https://odoo-community.org
+
+This module is maintained by the OCA.
+
+OCA, or the Odoo Community Association, is a nonprofit organization whose
+mission is to support the collaborative development of Odoo features and
+promote its widespread use.
+
+To contribute to this module, please visit https://odoo-community.org.
diff --git a/web_x2m_defaults_from_previous/__init__.py b/web_x2m_defaults_from_previous/__init__.py
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+# -*- coding: utf-8 -*-
+# © 2016 Therp BV <http://therp.nl>
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
diff --git a/web_x2m_defaults_from_previous/__openerp__.py b/web_x2m_defaults_from_previous/__openerp__.py
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+# -*- coding: utf-8 -*-
+# © 2016 Therp BV <http://therp.nl>
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
+{
+    "name": "x2many defaults",
+    "version": "8.0.1.0.0",
+    "author": "Therp BV,Odoo Community Association (OCA)",
+    "license": "AGPL-3",
+    "category": "Hidden/Dependency",
+    "summary": "Use previous input as default for next line",
+    "depends": [
+        'web',
+    ],
+    "demo": [
+        "demo/ir_ui_view.xml",
+    ],
+    "data": [
+        'views/templates.xml',
+    ],
+}
diff --git a/web_x2m_defaults_from_previous/demo/ir_ui_view.xml b/web_x2m_defaults_from_previous/demo/ir_ui_view.xml
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+++ b/web_x2m_defaults_from_previous/demo/ir_ui_view.xml
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+<?xml version="1.0" encoding="UTF-8"?>
+<openerp>
+    <data>
+        <record id="view_groups_form" model="ir.ui.view">
+            <field name="model">res.groups</field>
+            <field name="inherit_id" ref="base.view_groups_form" />
+            <field name="arch" type="xml">
+                <field name="model_access" position="attributes">
+                    <attribute name="options">{'web_x2m_defaults_from_previous': ['model_id', 'name']}</attribute>
+                </field>
+            </field>
+        </record>
+    </data>
+</openerp>
diff --git a/web_x2m_defaults_from_previous/static/description/icon.png b/web_x2m_defaults_from_previous/static/description/icon.png
new file mode 100644
index 00000000..3a0328b5
Binary files /dev/null and b/web_x2m_defaults_from_previous/static/description/icon.png differ
diff --git a/web_x2m_defaults_from_previous/static/src/js/web_x2m_defaults_from_previous.js b/web_x2m_defaults_from_previous/static/src/js/web_x2m_defaults_from_previous.js
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+++ b/web_x2m_defaults_from_previous/static/src/js/web_x2m_defaults_from_previous.js
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+//-*- coding: utf-8 -*-
+//© 2016 Therp BV <http://therp.nl>
+//License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
+
+openerp.web_x2m_defaults_from_previous = function(instance)
+{
+    instance.web.form.FieldOne2Many.include({
+        build_context: function()
+        {
+            var self = this,
+                default_fields =
+                this.options.web_x2m_defaults_from_previous || [],
+                extra_context = {},
+                result = this._super.apply(this, arguments);
+            if(!this.dataset.cache || !this.dataset.cache.length)
+            {
+                return result;
+            }
+            _.each(default_fields, function(field_name)
+            {
+                var value = self.dataset.cache[
+                    self.views[0].embedded_view.arch.attrs.editable == 'top' ?
+                    0 :
+                    self.dataset.cache.length - 1
+                ].values[field_name];
+                if(_.isArray(value))
+                {
+                    value = value[0];
+                }
+                extra_context[
+                    _.str.sprintf('default_%s', field_name)
+                ] = value;
+            });
+            if(!_.isEmpty(extra_context))
+            {
+                result.add(extra_context);
+            }
+            return result;
+        },
+    });
+};
diff --git a/web_x2m_defaults_from_previous/views/templates.xml b/web_x2m_defaults_from_previous/views/templates.xml
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+++ b/web_x2m_defaults_from_previous/views/templates.xml
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+<?xml version="1.0" encoding="UTF-8"?>
+<openerp>
+    <data>
+        <template id="assets_backend" name="web_x2m_defaults_from_previous assets" inherit_id="web.assets_backend">
+            <xpath expr="." position="inside">
+                <script type="text/javascript" src="/web_x2m_defaults_from_previous/static/src/js/web_x2m_defaults_from_previous.js"></script>
+            </xpath>
+        </template>
+    </data>
+</openerp>