diff --git a/mrp_production_operation_injection/README.rst b/mrp_production_operation_injection/README.rst
new file mode 100644
index 000000000..ccfc3f41a
--- /dev/null
+++ b/mrp_production_operation_injection/README.rst
@@ -0,0 +1 @@
+To be auto generated
diff --git a/mrp_production_operation_injection/__init__.py b/mrp_production_operation_injection/__init__.py
new file mode 100644
index 000000000..9b4296142
--- /dev/null
+++ b/mrp_production_operation_injection/__init__.py
@@ -0,0 +1,2 @@
+from . import models
+from . import wizard
diff --git a/mrp_production_operation_injection/__manifest__.py b/mrp_production_operation_injection/__manifest__.py
new file mode 100644
index 000000000..ccf4c6511
--- /dev/null
+++ b/mrp_production_operation_injection/__manifest__.py
@@ -0,0 +1,24 @@
+# Copyright 2022 Camptocamp SA
+# License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl)
+{
+    "name": "MRP Production Inject Operation",
+    "summary": "Adds an existing operation from the Bill of Material",
+    "version": "15.0.1.0.0",
+    "development_status": "Beta",
+    "category": "Manufacturing",
+    "website": "https://github.com/OCA/manufacture",
+    "author": "Camptocamp, Odoo Community Association (OCA)",
+    "maintainers": ["grindtildeath"],
+    "license": "AGPL-3",
+    "application": False,
+    "installable": True,
+    "depends": [
+        "mrp_workorder_sequence",
+    ],
+    "data": [
+        "security/ir.model.access.csv",
+        "views/mrp_production.xml",
+        "views/mrp_workorder.xml",
+        "wizard/mrp_workorder_injector.xml",
+    ],
+}
diff --git a/mrp_production_operation_injection/models/__init__.py b/mrp_production_operation_injection/models/__init__.py
new file mode 100644
index 000000000..5a0ba17ab
--- /dev/null
+++ b/mrp_production_operation_injection/models/__init__.py
@@ -0,0 +1,2 @@
+from . import mrp_production
+from . import mrp_workorder
diff --git a/mrp_production_operation_injection/models/mrp_production.py b/mrp_production_operation_injection/models/mrp_production.py
new file mode 100644
index 000000000..f357bad12
--- /dev/null
+++ b/mrp_production_operation_injection/models/mrp_production.py
@@ -0,0 +1,72 @@
+# Copyright 2022 Camptocamp SA
+# License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl)
+from odoo import api, fields, models
+
+
+class MrpProduction(models.Model):
+    _inherit = "mrp.production"
+
+    display_inject_workorder = fields.Boolean(
+        compute="_compute_display_inject_workorder"
+    )
+
+    @api.depends("state", "bom_id", "bom_id.operation_ids", "workorder_ids")
+    def _compute_display_inject_workorder(self):
+        for production in self:
+            production.display_inject_workorder = (
+                production.state in ["confirmed", "progress", "to_close"]
+                and production.bom_id.operation_ids
+                and production.workorder_ids
+            )
+
+    def action_open_workorder_injector(self):
+        self.ensure_one()
+        action = self.env["ir.actions.act_window"]._for_xml_id(
+            "mrp_production_operation_injection.mrp_workorder_injector_action"
+        )
+        ctx = self.env.context.copy()
+        ctx["default_production_id"] = self.id
+        action.update({"context": ctx})
+        return action
+
+    def _prepare_injected_workorder_values(self, operation):
+        self.ensure_one()
+        return {
+            "name": operation.name,
+            "production_id": self.id,
+            "workcenter_id": operation.workcenter_id.id,
+            "product_uom_id": self.product_uom_id.id,
+            "operation_id": operation.id,
+            "state": "pending",
+        }
+
+    def _add_workorder(self, operation, previous_workorder):
+        self.ensure_one()
+        following_workorders = self.workorder_ids.filtered(
+            lambda w: w.sequence > previous_workorder.sequence
+        )
+        next_workorder = fields.first(following_workorders)
+        # Prepare creation of new workorder
+        workorder_values = self._prepare_injected_workorder_values(operation)
+        workorder_values["sequence"] = previous_workorder.sequence + 1
+        workorder_values["next_work_order_id"] = next_workorder.id
+        # FIXME: state computation is not good in Odoo anyway so handle
+        #  only most 'probable' cases only
+        if next_workorder.state in ["ready", "progress"]:
+            workorder_values["state"] = "ready"
+        # Update following workorders sequence before create to make sure workorders
+        #  can be ordered properly for _action_confirm (cf override in mrp_workorder)
+        for wo in following_workorders:
+            wo.sequence += 1
+        new_workorder = self.env["mrp.workorder"].create(workorder_values)
+        # Update next workorder
+        # FIXME: state computation is not good in Odoo anyway so handle
+        #  only most 'probable' cases only
+        if next_workorder.state == "ready":
+            next_workorder.state = "pending"
+        new_workorder.duration_expected = new_workorder._get_duration_expected()
+        # Replan if needed after cache invalidation to make sure all workorders are considered
+        self.invalidate_cache()
+        if self.is_planned:
+            self._plan_workorders(replan=True)
+        return True
diff --git a/mrp_production_operation_injection/models/mrp_workorder.py b/mrp_production_operation_injection/models/mrp_workorder.py
new file mode 100644
index 000000000..cd56610ce
--- /dev/null
+++ b/mrp_production_operation_injection/models/mrp_workorder.py
@@ -0,0 +1,17 @@
+# Copyright 2022 Camptocamp SA
+# License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl)
+from odoo import fields, models
+
+
+class MrpWorkorder(models.Model):
+
+    _inherit = "mrp.workorder"
+
+    sequence = fields.Integer(readonly=True)
+
+    def _action_confirm(self):
+        # HACK: Ensure self is ordered according to redefined _order attribute
+        #  in mrp_sequence module as _action_confirm needs to loop in this
+        #  order to redefine next_work_order_id properly
+        self = self.sorted()
+        return super()._action_confirm()
diff --git a/mrp_production_operation_injection/readme/CONTRIBUTORS.rst b/mrp_production_operation_injection/readme/CONTRIBUTORS.rst
new file mode 100644
index 000000000..e31e2f0c4
--- /dev/null
+++ b/mrp_production_operation_injection/readme/CONTRIBUTORS.rst
@@ -0,0 +1 @@
+* Akim Juillerat <akim.juillerat@camptocamp.com>
diff --git a/mrp_production_operation_injection/readme/DESCRIPTION.rst b/mrp_production_operation_injection/readme/DESCRIPTION.rst
new file mode 100644
index 000000000..027f93302
--- /dev/null
+++ b/mrp_production_operation_injection/readme/DESCRIPTION.rst
@@ -0,0 +1,2 @@
+This module provides a wizard to add extra workorders based on existing BOM
+operations, and to select where such workorder should be added.
diff --git a/mrp_production_operation_injection/security/ir.model.access.csv b/mrp_production_operation_injection/security/ir.model.access.csv
new file mode 100644
index 000000000..86553a73a
--- /dev/null
+++ b/mrp_production_operation_injection/security/ir.model.access.csv
@@ -0,0 +1,2 @@
+id,name,model_id:id,group_id:id,perm_read,perm_write,perm_create,perm_unlink
+mrp_production_operation_injection.access_mrp_workorder_injector,access_mrp_workorder_injector,mrp_production_operation_injection.model_mrp_workorder_injector,mrp.group_mrp_user,1,1,1,1
diff --git a/mrp_production_operation_injection/tests/__init__.py b/mrp_production_operation_injection/tests/__init__.py
new file mode 100644
index 000000000..d29351eb8
--- /dev/null
+++ b/mrp_production_operation_injection/tests/__init__.py
@@ -0,0 +1 @@
+from . import test_mrp_production_inject_operation
diff --git a/mrp_production_operation_injection/tests/test_mrp_production_inject_operation.py b/mrp_production_operation_injection/tests/test_mrp_production_inject_operation.py
new file mode 100644
index 000000000..5fc7d37fb
--- /dev/null
+++ b/mrp_production_operation_injection/tests/test_mrp_production_inject_operation.py
@@ -0,0 +1,262 @@
+# Copyright 2022 Camptocamp SA
+# License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl)
+from odoo import fields
+from odoo.tests.common import Form, TransactionCase
+
+
+class TestMrpProductionInjectOperation(TransactionCase):
+    @classmethod
+    def setUpClass(cls):
+        super().setUpClass()
+        cls.env = cls.env(context=dict(cls.env.context, tracking_disable=True))
+        cls.product_template_drawer = cls.env.ref(
+            "product.product_product_27_product_template"
+        )
+        cls.product_drawer = cls.env.ref("product.product_product_27")
+        cls.bom_drawer = cls.env.ref("mrp.mrp_bom_drawer_rout")
+        cls.packing_operation = cls.env.ref("mrp.mrp_routing_workcenter_4")
+        cls.testing_operation = cls.env.ref("mrp.mrp_routing_workcenter_3")
+        cls.assembly_operation = cls.env.ref("mrp.mrp_routing_workcenter_1")
+        cls.assembly_line_workcenter = cls.env.ref("mrp.mrp_workcenter_3")
+        cls.productive_time = cls.env.ref("mrp.block_reason7")
+
+        cls.color_attribute = cls.env.ref("product.product_attribute_2")
+        cls.color_att_value_white = cls.env.ref("product.product_attribute_value_3")
+        cls.color_att_value_black = cls.env.ref("product.product_attribute_value_4")
+
+    @classmethod
+    def _define_color_attribute_on_drawer(cls):
+        """
+        Redefine Drawer product to manage attributes by:
+        - Creating white product
+        - Defining color as attribute of drawer product with white and black values
+        - Adding white component to the BOM drawer applying only on selected variant
+        - Adding a painting operation to the BOM drawer consuming white product only
+         on selected variant
+
+        """
+        white_color_product_tmpl_form = Form(cls.env["product.template"])
+        white_color_product_tmpl_form.name = "White color"
+        white_color_product_tmpl = white_color_product_tmpl_form.save()
+
+        cls.env["product.template.attribute.line"].create(
+            {
+                "product_tmpl_id": cls.product_template_drawer.id,
+                "attribute_id": cls.color_attribute.id,
+                "value_ids": [
+                    fields.Command.set(
+                        [cls.color_att_value_white.id, cls.color_att_value_black.id]
+                    )
+                ],
+            }
+        )
+
+        tmpl_attr_value_white = cls.env["product.template.attribute.value"].search(
+            [
+                ("product_tmpl_id", "=", cls.product_template_drawer.id),
+                ("product_attribute_value_id", "=", cls.color_att_value_white.id),
+            ]
+        )
+        tmpl_attr_value_black = cls.env["product.template.attribute.value"].search(
+            [
+                ("product_tmpl_id", "=", cls.product_template_drawer.id),
+                ("product_attribute_value_id", "=", cls.color_att_value_black.id),
+            ]
+        )
+
+        cls.env["mrp.bom.line"].create(
+            {
+                "bom_id": cls.bom_drawer.id,
+                "product_id": white_color_product_tmpl.product_variant_id.id,
+                "bom_product_template_attribute_value_ids": [
+                    fields.Command.link(tmpl_attr_value_white.id)
+                ],
+            }
+        )
+
+        cls.env["mrp.routing.workcenter"].create(
+            {
+                "name": "Painting",
+                "bom_id": cls.bom_drawer.id,
+                "workcenter_id": cls.assembly_line_workcenter.id,
+                "bom_product_template_attribute_value_ids": [
+                    fields.Command.link(tmpl_attr_value_white.id)
+                ],
+            }
+        )
+
+        white_drawer = cls.product_template_drawer.product_variant_ids.filtered(
+            lambda p: p.product_template_variant_value_ids == tmpl_attr_value_white
+        )
+        black_drawer = cls.product_template_drawer.product_variant_ids.filtered(
+            lambda p: p.product_template_variant_value_ids == tmpl_attr_value_black
+        )
+
+        return white_drawer, black_drawer
+
+    @classmethod
+    def _create_manufacturing_order(cls, product, bom=None):
+        mo_form = Form(cls.env["mrp.production"])
+        mo_form.product_id = product
+        if bom is not None:
+            mo_form.bom_id = bom
+        mo = mo_form.save()
+        return mo
+
+    @classmethod
+    def _get_injector_wizard_form(cls, production):
+        action = production.action_open_workorder_injector()
+        injector_form = Form(
+            cls.env[action["res_model"]].with_context(**action.get("context", {}))
+        )
+        return injector_form
+
+    @classmethod
+    def _inject_operation(cls, production, new_operation, previous_workorder):
+        injector_form = cls._get_injector_wizard_form(production)
+        injector_form.operation_id = new_operation
+        injector_form.workorder_id = previous_workorder
+        injector_wiz = injector_form.save()
+        injector_wiz.action_add_operation()
+
+    @classmethod
+    def _get_new_workorder(cls, previously_existing_wos, existing_wos):
+        return previously_existing_wos - existing_wos
+
+    @classmethod
+    def _record_time_tracking(cls, workorder, duration, productivity):
+        workorder_form = Form(workorder)
+        with workorder_form.time_ids.new() as time_tracking_form:
+            time_tracking_form.date_end = fields.Datetime.add(
+                time_tracking_form.date_start, seconds=duration
+            )
+            time_tracking_form.loss_id = productivity
+
+    def test_injector_allowed_operations_no_variant(self):
+        """Test only operations from bom are allowed in wizard"""
+        mo = self._create_manufacturing_order(self.product_drawer, self.bom_drawer)
+        mo.action_confirm()
+        injector_form = self._get_injector_wizard_form(mo)
+        non_related_bom_operations = self.env["mrp.routing.workcenter"].search(
+            [("id", "not in", self.bom_drawer.operation_ids.ids)]
+        )
+        self.assertTrue(non_related_bom_operations)
+        for op in non_related_bom_operations:
+            self.assertNotIn(op, injector_form.allowed_bom_operation_ids)
+        for op in mo.bom_id.operation_ids:
+            self.assertIn(op, injector_form.allowed_bom_operation_ids)
+
+    def test_injector_allowed_operations_variant(self):
+        """Test only operations from bom are allowed in wizard"""
+        white_drawer, black_drawer = self._define_color_attribute_on_drawer()
+        mo = self._create_manufacturing_order(white_drawer, self.bom_drawer)
+        mo.action_confirm()
+        injector_form = self._get_injector_wizard_form(mo)
+        for op in mo.bom_id.operation_ids:
+            self.assertIn(op, injector_form.allowed_bom_operation_ids)
+        mo = self._create_manufacturing_order(black_drawer, self.bom_drawer)
+        mo.action_confirm()
+        injector_form = self._get_injector_wizard_form(mo)
+        for op in mo.bom_id.operation_ids:
+            if op.bom_product_template_attribute_value_ids:
+                self.assertEqual(op.name, "Painting")
+                self.assertNotIn(op, injector_form.allowed_bom_operation_ids)
+            else:
+                self.assertIn(op, injector_form.allowed_bom_operation_ids)
+
+    def test_injector_allowed_workorders_no_variant(self):
+        """Test only workorders from manufacturing order are allowed in wizard"""
+        mo = self._create_manufacturing_order(self.product_drawer, self.bom_drawer)
+        mo.action_confirm()
+        injector_form = self._get_injector_wizard_form(mo)
+        non_mo_workorders = self.env["mrp.workorder"].search(
+            [("id", "not in", mo.workorder_ids.ids)]
+        )
+        for wo in non_mo_workorders:
+            self.assertNotIn(wo, injector_form.production_workorder_ids)
+        for wo in mo.workorder_ids:
+            self.assertIn(wo, injector_form.production_workorder_ids)
+        # Ensure only last done workorder is selectable as previous operation
+        first_workorder = fields.first(mo.workorder_ids)
+        second_workorder = first_workorder.next_work_order_id
+        third_workorder = second_workorder.next_work_order_id
+        first_workorder.button_start()
+        first_workorder.button_finish()
+        second_workorder.button_start()
+        second_workorder.button_finish()
+        injector_form = self._get_injector_wizard_form(mo)
+        self.assertNotIn(first_workorder, injector_form.production_workorder_ids)
+        self.assertIn(second_workorder, injector_form.production_workorder_ids)
+        self.assertIn(third_workorder, injector_form.production_workorder_ids)
+
+    def test_inject_operation(self):
+        mo = self._create_manufacturing_order(self.product_drawer, self.bom_drawer)
+        mo.action_confirm()
+        mo.button_plan()
+        first_workorder = fields.first(mo.workorder_ids)
+        second_workorder = first_workorder.next_work_order_id
+        third_workorder = second_workorder.next_work_order_id
+        # Inject extra testing operation at the end
+        self._inject_operation(mo, self.testing_operation, third_workorder)
+        self.assertEqual(len(mo.workorder_ids), 4)
+        last_workorder = fields.first(mo.workorder_ids.sorted(reverse=True))
+        self.assertEqual(last_workorder.name, self.testing_operation.name)
+        self.assertEqual(last_workorder.operation_id, self.testing_operation)
+        self.assertEqual(
+            last_workorder.workcenter_id, self.testing_operation.workcenter_id
+        )
+        self.assertEqual(last_workorder.state, "pending")
+        self.assertEqual(last_workorder.sequence, 4)
+        self.assertEqual(
+            last_workorder.date_planned_start, third_workorder.date_planned_finished
+        )
+        self.assertEqual(
+            last_workorder.date_planned_finished,
+            last_workorder.workcenter_id.resource_calendar_id.plan_hours(
+                last_workorder.duration_expected / 60.0,
+                last_workorder.date_planned_start,
+                compute_leaves=True,
+                domain=[("time_type", "in", ["leave", "other"])],
+            ),
+        )
+        self.assertEqual(third_workorder.next_work_order_id, last_workorder)
+        # Start first op and register time tracking
+        first_workorder.button_start()
+        self._record_time_tracking(first_workorder, 60, self.productive_time)
+        first_workorder.button_finish()
+        self.assertEqual(first_workorder.state, "done")
+        self.assertEqual(second_workorder.state, "ready")
+        # Inject extra packing operation before second workorder
+        pre_existing_wo_ids = set(mo.workorder_ids.ids)
+        self._inject_operation(mo, self.packing_operation, first_workorder)
+        existing_wo_ids = set(mo.workorder_ids.ids)
+        new_workorder = self.env["mrp.workorder"].browse(
+            existing_wo_ids - pre_existing_wo_ids
+        )
+        self.assertEqual(new_workorder.state, "ready")
+        self.assertEqual(new_workorder.sequence, 2)
+        self.assertEqual(
+            new_workorder.date_planned_start,
+            new_workorder.workcenter_id.resource_calendar_id.plan_hours(
+                -new_workorder.duration_expected / 60.0,
+                new_workorder.date_planned_finished,
+                compute_leaves=True,
+                domain=[("time_type", "in", ["leave", "other"])],
+            ),
+        )
+        self.assertEqual(
+            new_workorder.date_planned_finished, second_workorder.date_planned_start
+        )
+        self.assertEqual(new_workorder.next_work_order_id, second_workorder)
+        # Second workorder is now the third one
+        self.assertEqual(second_workorder.state, "pending")
+        self.assertEqual(second_workorder.sequence, 3)
+        self.assertEqual(second_workorder.next_work_order_id, third_workorder)
+        # Third workorder is now the fourth one
+        self.assertEqual(third_workorder.state, "pending")
+        self.assertEqual(third_workorder.sequence, 4)
+        self.assertEqual(third_workorder.next_work_order_id, last_workorder)
+        # Last workorder is still the last one
+        self.assertEqual(last_workorder.state, "pending")
+        self.assertEqual(last_workorder.sequence, 5)
+        self.assertFalse(last_workorder.next_work_order_id)
diff --git a/mrp_production_operation_injection/views/mrp_production.xml b/mrp_production_operation_injection/views/mrp_production.xml
new file mode 100644
index 000000000..3edfcbf20
--- /dev/null
+++ b/mrp_production_operation_injection/views/mrp_production.xml
@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<odoo>
+    <record id="mrp_production_form_view_inherit" model="ir.ui.view">
+        <field name="name">mrp.production.form.inherit</field>
+        <field name="model">mrp.production</field>
+        <field name="inherit_id" ref="mrp.mrp_production_form_view" />
+        <field name="arch" type="xml">
+            <header position="inside">
+                <field name="display_inject_workorder" invisible="1" />
+                <button
+                    name="action_open_workorder_injector"
+                    type="object"
+                    string="Inject operation"
+                    attrs="{'invisible': [('display_inject_workorder', '=', False)]}"
+                />
+            </header>
+        </field>
+    </record>
+</odoo>
diff --git a/mrp_production_operation_injection/views/mrp_workorder.xml b/mrp_production_operation_injection/views/mrp_workorder.xml
new file mode 100644
index 000000000..7a3700b93
--- /dev/null
+++ b/mrp_production_operation_injection/views/mrp_workorder.xml
@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<odoo>
+    <record id="mrp_production_workorder_tree_view_inherit" model="ir.ui.view">
+        <field name="name">mrp.workorder.tree</field>
+        <field name="model">mrp.workorder</field>
+        <field
+            name="inherit_id"
+            ref="mrp_workorder_sequence.mrp_production_workorder_tree_view_inherit"
+        />
+        <field name="arch" type="xml">
+            <field name="sequence" position="attributes">
+                <attribute name="force_save">1</attribute>
+            </field>
+        </field>
+    </record>
+</odoo>
diff --git a/mrp_production_operation_injection/wizard/__init__.py b/mrp_production_operation_injection/wizard/__init__.py
new file mode 100644
index 000000000..f30517b90
--- /dev/null
+++ b/mrp_production_operation_injection/wizard/__init__.py
@@ -0,0 +1 @@
+from . import mrp_workorder_injector
diff --git a/mrp_production_operation_injection/wizard/mrp_workorder_injector.py b/mrp_production_operation_injection/wizard/mrp_workorder_injector.py
new file mode 100644
index 000000000..e848b0cc4
--- /dev/null
+++ b/mrp_production_operation_injection/wizard/mrp_workorder_injector.py
@@ -0,0 +1,67 @@
+# Copyright 2022 Camptocamp SA
+# License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl)
+
+from odoo import api, fields, models
+
+
+class MrpWorkorderInjector(models.TransientModel):
+
+    _name = "mrp.workorder.injector"
+    _description = "Inject operation from BOM into workorders"
+
+    production_id = fields.Many2one("mrp.production", required=True)
+    bom_id = fields.Many2one("mrp.bom", related="production_id.bom_id")
+    allowed_bom_operation_ids = fields.Many2many(
+        "mrp.routing.workcenter", compute="_compute_allowed_bom_operation_ids"
+    )
+    production_workorder_ids = fields.Many2many(
+        "mrp.workorder", compute="_compute_production_workorder_ids"
+    )
+    operation_id = fields.Many2one(
+        "mrp.routing.workcenter", "New operation", required=True
+    )
+    workorder_id = fields.Many2one("mrp.workorder", "Previous workorder", required=True)
+
+    @api.depends("bom_id", "bom_id.operation_ids")
+    def _compute_allowed_bom_operation_ids(self):
+        for wiz in self:
+            bom_operations = wiz.bom_id.operation_ids
+            # TODO: Move this check in default_get or somewhere else?
+            if not wiz.bom_id or not bom_operations:
+                wiz.allowed_bom_operation_ids = [fields.Command.clear()]
+                continue
+            # Filter out operations applying only for other variants
+            allowed_operations = bom_operations.filtered(
+                lambda o: not o._skip_operation_line(wiz.production_id.product_id)
+            )
+            # TODO: filter out operations consuming components?
+            # AFAICS the link from bom line to operations will only be used to define
+            # on the stock move in which workorder such component is supposed to be
+            # consumed, and will then be used to compute the state of the workorder
+            # through the reservation_state field of the MO:
+            # - Waiting components if move is not assigned
+            # - Ready if move is assigned
+            wiz.allowed_bom_operation_ids = [fields.Command.set(allowed_operations.ids)]
+
+    @api.depends("production_id")
+    def _compute_production_workorder_ids(self):
+        for wiz in self:
+            prod_workorders = wiz.production_id.workorder_ids
+            if not prod_workorders:
+                wiz.production_workorder_ids = [fields.Command.clear()]
+                continue
+            done_wos = prod_workorders.filtered(lambda w: w.state == "done")
+            if not done_wos or len(done_wos) == 1:
+                wiz.production_workorder_ids = [fields.Command.set(prod_workorders.ids)]
+                continue
+            # Only allow to add new operation after last Done workorder
+            last_done_wo = fields.first(done_wos.sorted(reverse=True))
+            allowed_wos = last_done_wo + prod_workorders.filtered(
+                lambda w: w.state != "done"
+            )
+            wiz.production_workorder_ids = allowed_wos
+
+    def action_add_operation(self):
+        self.ensure_one()
+        self.production_id._add_workorder(self.operation_id, self.workorder_id)
+        return {"type": "ir.actions.act_window_close"}
diff --git a/mrp_production_operation_injection/wizard/mrp_workorder_injector.xml b/mrp_production_operation_injection/wizard/mrp_workorder_injector.xml
new file mode 100644
index 000000000..7568b83bf
--- /dev/null
+++ b/mrp_production_operation_injection/wizard/mrp_workorder_injector.xml
@@ -0,0 +1,42 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<odoo>
+    <record id="mrp_workorder_injector_view_form" model="ir.ui.view">
+        <field name="name">mrp.workorder.injector.form.view</field>
+        <field name="model">mrp.workorder.injector</field>
+        <field name="arch" type="xml">
+            <form string="Add operation to workorders">
+                <group>
+                    <field name="production_id" invisible="1" />
+                    <field name="bom_id" invisible="1" />
+                    <field name="allowed_bom_operation_ids" invisible="1" />
+                    <field name="production_workorder_ids" invisible="1" />
+                    <field
+                        name="operation_id"
+                        domain="[('id', 'in', allowed_bom_operation_ids)]"
+                        options="{'no_create': True, 'no_quick_create': True, 'no_create_edit':True}"
+                    />
+                    <field
+                        name="workorder_id"
+                        domain="[('id', 'in', production_workorder_ids)]"
+                        options="{'no_create': True, 'no_quick_create': True, 'no_create_edit':True}"
+                    />
+                </group>
+                <footer>
+                    <button
+                        name="action_add_operation"
+                        type="object"
+                        string="Add"
+                        class="oe_highlight"
+                    />
+                    <button special="cancel" string="Cancel" />
+                </footer>
+            </form>
+        </field>
+    </record>
+    <record id="mrp_workorder_injector_action" model="ir.actions.act_window">
+        <field name="name">Inject operation</field>
+        <field name="res_model">mrp.workorder.injector</field>
+        <field name="view_mode">form</field>
+        <field name="target">new</field>
+    </record>
+</odoo>
diff --git a/setup/mrp_production_operation_injection/odoo/addons/mrp_production_operation_injection b/setup/mrp_production_operation_injection/odoo/addons/mrp_production_operation_injection
new file mode 120000
index 000000000..792e0aea4
--- /dev/null
+++ b/setup/mrp_production_operation_injection/odoo/addons/mrp_production_operation_injection
@@ -0,0 +1 @@
+../../../../mrp_production_operation_injection
\ No newline at end of file
diff --git a/setup/mrp_production_operation_injection/setup.py b/setup/mrp_production_operation_injection/setup.py
new file mode 100644
index 000000000..28c57bb64
--- /dev/null
+++ b/setup/mrp_production_operation_injection/setup.py
@@ -0,0 +1,6 @@
+import setuptools
+
+setuptools.setup(
+    setup_requires=['setuptools-odoo'],
+    odoo_addon=True,
+)