diff --git a/account_payment_order/models/account_move.py b/account_payment_order/models/account_move.py
index 7abc937c9..c7bcbe9d5 100644
--- a/account_payment_order/models/account_move.py
+++ b/account_payment_order/models/account_move.py
@@ -27,6 +27,7 @@ class AccountMove(models.Model):
         states={"draft": [("readonly", False)]},
         default="none",
     )
+    payment_line_count = fields.Integer(compute="_compute_payment_line_count")
 
     @api.depends("payment_mode_id", "line_ids", "line_ids.payment_mode_id")
     def _compute_payment_order_ok(self):
@@ -38,6 +39,14 @@ class AccountMove(models.Model):
                 payment_mode = move.payment_mode_id
             move.payment_order_ok = payment_mode.payment_order_ok
 
+    def _compute_payment_line_count(self):
+        for move in self:
+            move.payment_line_count = len(
+                self.env["account.payment.line"]._search(
+                    [("move_line_id", "in", self.line_ids.ids)]
+                )
+            )
+
     def _get_payment_order_communication_direct(self):
         """Retrieve the communication string for this direct item."""
         communication = self.payment_reference or self.ref or self.name or ""
@@ -207,3 +216,20 @@ class AccountMove(models.Model):
                 }
             )
         return action
+
+    def action_payment_lines(self):
+        self.ensure_one()
+        action = self.env["ir.actions.act_window"]._for_xml_id(
+            "account_payment_order.account_payment_line_action"
+        )
+        action.update(
+            {
+                "domain": [("move_line_id", "in", self.line_ids.ids)],
+                "context": dict(
+                    self.env.context,
+                    account_payment_line_main_view=1,
+                    form_view_ref="account_payment_order.account_payment_line_form_readonly",
+                ),
+            }
+        )
+        return action
diff --git a/account_payment_order/views/account_invoice_view.xml b/account_payment_order/views/account_invoice_view.xml
index 3ca3703b8..111871238 100644
--- a/account_payment_order/views/account_invoice_view.xml
+++ b/account_payment_order/views/account_invoice_view.xml
@@ -39,6 +39,21 @@
                                              ]}"
                 />
             </button>
+            <div name="button_box" position="inside">
+                <button
+                    name="action_payment_lines"
+                    type="object"
+                    attrs="{'invisible': [('payment_line_count', '=', 0)]}"
+                    icon="fa-bars"
+                    help="Payment Order Lines"
+                >
+                    <field
+                        string="Payment Lines"
+                        name="payment_line_count"
+                        widget="statinfo"
+                    />
+                </button>
+            </div>
             <field name="payment_mode_id" position="after">
                 <field name="payment_order_ok" invisible="1" />
             </field>
diff --git a/account_payment_order/views/account_payment_line.xml b/account_payment_order/views/account_payment_line.xml
index e1fc70d9c..38f5160a0 100644
--- a/account_payment_order/views/account_payment_line.xml
+++ b/account_payment_order/views/account_payment_line.xml
@@ -7,6 +7,7 @@
             <form string="Payment Lines">
                 <group name="main" col="2">
                     <group name="left">
+                        <field name="state" invisible="1" />
                         <field name="company_id" invisible="1" />
                         <field
                             name="order_id"
@@ -50,6 +51,23 @@
             </form>
         </field>
     </record>
+    <record id="account_payment_line_form_readonly" model="ir.ui.view">
+        <field name="name">account.payment.line.form.readonly</field>
+        <field name="model">account.payment.line</field>
+        <field
+            name="inherit_id"
+            ref="account_payment_order.account_payment_line_form"
+        />
+        <field name="mode">primary</field>
+        <field name="arch" type="xml">
+            <form position="attributes">
+                <attribute name="create">0</attribute>
+                <attribute name="edit">0</attribute>
+                <attribute name="delete">0</attribute>
+                <attribute name="duplicate">0</attribute>
+            </form>
+        </field>
+    </record>
     <record id="account_payment_line_tree" model="ir.ui.view">
         <field name="name">account.payment.line.tree</field>
         <field name="model">account.payment.line</field>