diff --git a/pos_usability/__init__.py b/pos_usability/__init__.py
index e69de29..0650744 100644
--- a/pos_usability/__init__.py
+++ b/pos_usability/__init__.py
@@ -0,0 +1 @@
+from . import models
diff --git a/pos_usability/__manifest__.py b/pos_usability/__manifest__.py
index cc14c45..fe5842a 100644
--- a/pos_usability/__manifest__.py
+++ b/pos_usability/__manifest__.py
@@ -1,8 +1,10 @@
+# Copyright 2014-2021 Akretion France (http://www.akretion.com/)
+# @author: Alexis de Lattre <alexis.delattre@akretion.com>
 # License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
 
 {
     "name": "POS Usability",
-    "version": "12.0.1.0.0",
+    "version": "14.0.1.0.0",
     "category": "Point of sale",
     "license": "AGPL-3",
     "summary": "Misc usability improvement for point of sale",
@@ -24,6 +26,10 @@ Akretion:
     "author": "Akretion",
     "website": "http://www.akretion.com",
     "depends": ["point_of_sale"],
-    "data": ["report/pos.xml"],
-    "installable": False,
+    "data": [
+        "report/pos.xml",
+        "views/pos_category.xml",
+        "views/product.xml",
+        ],
+    "installable": True,
 }
diff --git a/pos_usability/models/__init__.py b/pos_usability/models/__init__.py
new file mode 100644
index 0000000..4d5f90b
--- /dev/null
+++ b/pos_usability/models/__init__.py
@@ -0,0 +1,2 @@
+from . import product
+from . import pos_category
diff --git a/pos_usability/models/pos_category.py b/pos_usability/models/pos_category.py
new file mode 100644
index 0000000..09747c8
--- /dev/null
+++ b/pos_usability/models/pos_category.py
@@ -0,0 +1,25 @@
+# Copyright 2017-2021 Akretion France (http://www.akretion.com/)
+# @author: Alexis de Lattre <alexis.delattre@akretion.com>
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+
+from odoo import fields, models
+
+
+class PosCategory(models.Model):
+    _inherit = 'pos.category'
+
+    product_count = fields.Integer(
+        '# Products', compute='_compute_product_count',
+        help="The number of products under this point of sale category "
+        "(does not consider the children categories)")
+
+    # inspired by the code of odoo/addons/product/models/product.py
+    def _compute_product_count(self):
+        read_group_res = self.env['product.template'].read_group(
+            [('pos_categ_id', 'in', self.ids)],
+            ['pos_categ_id'], ['pos_categ_id'])
+        group_data = dict(
+            (data['pos_categ_id'][0], data['pos_categ_id_count']) for data
+            in read_group_res)
+        for pos_categ in self:
+            pos_categ.product_count = group_data.get(pos_categ.id, 0)
diff --git a/pos_usability/models/product.py b/pos_usability/models/product.py
new file mode 100644
index 0000000..4e8f2dc
--- /dev/null
+++ b/pos_usability/models/product.py
@@ -0,0 +1,12 @@
+# Copyright 2017-2021 Akretion France (http://www.akretion.com/)
+# @author: Alexis de Lattre <alexis.delattre@akretion.com>
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+
+from odoo import fields, models
+
+
+class ProductTemplate(models.Model):
+    _inherit = 'product.template'
+
+    available_in_pos = fields.Boolean(tracking=True)
+    pos_categ_id = fields.Many2one(tracking=True)
diff --git a/pos_usability/views/pos_category.xml b/pos_usability/views/pos_category.xml
new file mode 100644
index 0000000..34a17ed
--- /dev/null
+++ b/pos_usability/views/pos_category.xml
@@ -0,0 +1,35 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<!--
+  Copyright 2015-2021 Akretion France (http://www.akretion.com/)
+  @author: Alexis de Lattre <alexis.delattre@akretion.com>
+  License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+-->
+
+<odoo>
+
+
+<record id="product_pos_category_form_view" model="ir.ui.view">
+    <field name="name">pos_usability.pos.category.form</field>
+    <field name="model">pos.category</field>
+    <field name="inherit_id" ref="point_of_sale.product_pos_category_form_view"/>
+    <field name="arch" type="xml">
+        <div class="oe_title" position="before">
+            <div class="oe_button_box" name="button_box">
+                <button class="oe_stat_button"
+                        name="%(product.product_template_action_all)d"
+                        icon="fa-th-list"
+                        type="action"
+                        context="{'search_default_pos_categ_id': active_id}">
+                    <div class="o_form_field o_stat_info">
+                        <span class="o_stat_value"><field name="product_count"/></span>
+                        <span class="o_stat_text"> Products</span>
+                    </div>
+                </button>
+            </div>
+        </div>
+    </field>
+</record>
+
+
+</odoo>
diff --git a/pos_usability/views/product.xml b/pos_usability/views/product.xml
new file mode 100644
index 0000000..f1e81aa
--- /dev/null
+++ b/pos_usability/views/product.xml
@@ -0,0 +1,43 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<!--
+  Copyright 2015-2021 Akretion France (http://www.akretion.com/)
+  @author: Alexis de Lattre <alexis.delattre@akretion.com>
+  License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+-->
+
+<odoo>
+
+
+<!-- put option "available in POS" at the top of product form view -->
+<record id="product_template_form_view" model="ir.ui.view">
+    <field name="name">usability.pos.product.template</field>
+    <field name="model">product.template</field>
+    <field name="inherit_id" ref="point_of_sale.product_template_form_view"/>
+    <field name="arch" type="xml">
+        <xpath expr="//group[@name='pos']//field[@name='available_in_pos']" position="replace"/>
+        <xpath expr="//div[@name='options']//field[@name='sale_ok']/.." position="after">
+            <div name="available_in_pos">
+                <field name="available_in_pos"/>
+                <label for="available_in_pos"/>
+            </div>
+        </xpath>
+    </field>
+</record>
+
+<record id="product_template_search_view" model="ir.ui.view">
+    <field name="name">pos_usability.product.template.search</field>
+    <field name="model">product.template</field>
+    <field name="inherit_id" ref="product.product_template_search_view"/>
+    <field name="arch" type="xml">
+        <field name="categ_id" position="after">
+            <field name="pos_categ_id" filter_domain="[('pos_categ_id', 'child_of', raw_value)]"/>
+        </field>
+        <filter name="categ_id" position="after">
+            <filter name="pos_categ_groupby" string="Point of Sale Category" context="{'group_by': 'pos_categ_id'}"/>
+        </filter>
+    </field>
+</record>
+
+
+</odoo>