diff --git a/modules/purchase_trade/__init__.py b/modules/purchase_trade/__init__.py
index fb362a4..483dc84 100755
--- a/modules/purchase_trade/__init__.py
+++ b/modules/purchase_trade/__init__.py
@@ -192,6 +192,7 @@ def register():
         lot.LotContext,
         lot.LotShippingStart,
         lot.LotPlanTransportStart,
+        lot.LotPlanTransportLine,
         lot.LotMatchingStart,
         lot.LotWeighingStart,
         lot.LotAddLot,
diff --git a/modules/purchase_trade/lot.py b/modules/purchase_trade/lot.py
index e67921d..78c3cbf 100755
--- a/modules/purchase_trade/lot.py
+++ b/modules/purchase_trade/lot.py
@@ -3235,61 +3235,65 @@ class LotPlanTransport(Wizard):
     def default_plan(self, fields):
         if not self.records:
             return {}
-        record = self.records[0]
-        quantity = record.r_lot_quantity or record.r_lot_matched or 0
-        values = {
-            'quantity': quantity,
-            'unit': record.r_lot_unit_line.id if record.r_lot_unit_line else None,
-            'cancel_plan': bool(
-                record.r_planned_from_location
-                or record.r_planned_to_location
-                or record.r_planned_transport_type
-                or record.r_planned_from_date
-                or record.r_planned_to_date
-                or record.r_planned_note),
-            'planned_from_location': (
-                record.r_planned_from_location.id
-                if record.r_planned_from_location else None),
-            'planned_to_location': (
-                record.r_planned_to_location.id
-                if record.r_planned_to_location else None),
-            'planned_transport_type': record.r_planned_transport_type,
-            'planned_from_date': record.r_planned_from_date,
-            'planned_to_date': record.r_planned_to_date,
-            'planned_note': record.r_planned_note,
-        }
-        return values
+        lines = []
+        for record in self.records:
+            quantity = record.r_lot_quantity or record.r_lot_matched or 0
+            if record.id < 10000000:
+                raise UserError(
+                    "Only open quantity lines can be planned.")
+            lines.append({
+                'lotqt': record.id - 10000000,
+                'quantity': quantity,
+                'unit': (
+                    record.r_lot_unit_line.id
+                    if record.r_lot_unit_line else None),
+                'cancel_plan': bool(
+                    record.r_planned_from_location
+                    or record.r_planned_to_location
+                    or record.r_planned_transport_type
+                    or record.r_planned_from_date
+                    or record.r_planned_to_date
+                    or record.r_planned_note),
+                'planned_from_location': (
+                    record.r_planned_from_location.id
+                    if record.r_planned_from_location else None),
+                'planned_to_location': (
+                    record.r_planned_to_location.id
+                    if record.r_planned_to_location else None),
+                'planned_transport_type': record.r_planned_transport_type,
+                'planned_from_date': record.r_planned_from_date,
+                'planned_to_date': record.r_planned_to_date,
+                'planned_note': record.r_planned_note,
+                })
+        return {'lines': lines}
 
     def transition_planning(self):
         Lot = Pool().get('lot.lot')
         LotQt = Pool().get('lot.qt')
         affected_lines = []
-        if len(self.records) != 1:
-            raise UserError("Please select exactly one quantity line to plan.")
-        plan_values = {
-            'planned_from_location': (
-                self.plan.planned_from_location.id
-                if self.plan.planned_from_location else None),
-            'planned_to_location': (
-                self.plan.planned_to_location.id
-                if self.plan.planned_to_location else None),
-            'planned_transport_type': self.plan.planned_transport_type,
-            'planned_from_date': self.plan.planned_from_date,
-            'planned_to_date': self.plan.planned_to_date,
-            'planned_note': self.plan.planned_note,
-        }
+        if not self.plan.lines:
+            raise UserError("Please select at least one quantity line to plan.")
         with Lot.skip_quantity_consistency():
-            for record in self.records:
-                if record.id < 10000000:
-                    raise UserError(
-                        "Only open quantity lines can be planned.")
-                lotqt = LotQt(record.id - 10000000)
+            for line in self.plan.lines:
+                lotqt = line.lotqt
+                plan_values = {
+                    'planned_from_location': (
+                        line.planned_from_location.id
+                        if line.planned_from_location else None),
+                    'planned_to_location': (
+                        line.planned_to_location.id
+                        if line.planned_to_location else None),
+                    'planned_transport_type': line.planned_transport_type,
+                    'planned_from_date': line.planned_from_date,
+                    'planned_to_date': line.planned_to_date,
+                    'planned_note': line.planned_note,
+                    }
                 self._append_lotqt_affected_lines(lotqt, affected_lines)
-                if self.plan.cancel_plan:
+                if line.cancel_plan:
                     LotQt.cancel_transport_plan(lotqt)
                 else:
                     LotQt.plan_to_transport(
-                        lotqt, self.plan.quantity, plan_values)
+                        lotqt, line.quantity, plan_values)
         Lot.assert_lines_quantity_consistency(affected_lines)
         return 'end'
 
@@ -3301,6 +3305,16 @@ class LotPlanTransportStart(ModelView):
     "Plan lot to transport"
     __name__ = "lot.plan_transport.start"
 
+    lines = fields.One2Many(
+        'lot.plan_transport.line', 'plan', "Planning lines")
+
+
+class LotPlanTransportLine(ModelView):
+    "Plan lot to transport line"
+    __name__ = "lot.plan_transport.line"
+
+    plan = fields.Many2One('lot.plan_transport.start', "Plan")
+    lotqt = fields.Many2One('lot.qt', "Quantity line", readonly=True)
     cancel_plan = fields.Boolean("Cancel existing plan")
     planned_from_location = fields.Many2One(
         'stock.location', "Planned From",
diff --git a/modules/purchase_trade/lot.xml b/modules/purchase_trade/lot.xml
index ac378ae..b8e0e29 100755
--- a/modules/purchase_trade/lot.xml
+++ b/modules/purchase_trade/lot.xml
@@ -123,6 +123,11 @@ this repository contains the full copyright notices and license terms. -->
             <field name="type">form</field>
             <field name="name">lot_plan_transport_start_form</field>
         </record>
+        <record model="ir.ui.view" id="plan_transport_line_view_tree">
+            <field name="model">lot.plan_transport.line</field>
+            <field name="type">tree</field>
+            <field name="name">lot_plan_transport_line_tree</field>
+        </record>
         <record model="ir.action.wizard" id="act_shipping">
             <field name="name">🚢 Link lots to transport</field>
             <field name="wiz_name">lot.shipping</field>
diff --git a/modules/purchase_trade/tests/test_module.py b/modules/purchase_trade/tests/test_module.py
index a714ad6..587840e 100644
--- a/modules/purchase_trade/tests/test_module.py
+++ b/modules/purchase_trade/tests/test_module.py
@@ -206,6 +206,106 @@ class PurchaseTradeTestCase(ModuleTestCase):
 
         self.assertEqual(affected_lines, [purchase_line, sale_line])
 
+    def test_plan_transport_defaults_multiple_lines(self):
+        'plan transport wizard opens one planning line per selected quantity'
+        wizard = lot_module.LotPlanTransport()
+        wizard.records = [
+            Mock(
+                id=10000001,
+                r_lot_quantity=Decimal('100'),
+                r_lot_matched=Decimal('0'),
+                r_lot_unit_line=Mock(id=3),
+                r_planned_from_location=Mock(id=10),
+                r_planned_to_location=Mock(id=20),
+                r_planned_transport_type='vessel',
+                r_planned_from_date=datetime.date(2026, 7, 1),
+                r_planned_to_date=datetime.date(2026, 7, 5),
+                r_planned_note='First leg'),
+            Mock(
+                id=10000002,
+                r_lot_quantity=Decimal('200'),
+                r_lot_matched=Decimal('0'),
+                r_lot_unit_line=Mock(id=4),
+                r_planned_from_location=None,
+                r_planned_to_location=None,
+                r_planned_transport_type=None,
+                r_planned_from_date=None,
+                r_planned_to_date=None,
+                r_planned_note=None),
+        ]
+
+        values = wizard.default_plan(None)
+
+        self.assertEqual(len(values['lines']), 2)
+        self.assertEqual(values['lines'][0]['lotqt'], 1)
+        self.assertEqual(values['lines'][0]['quantity'], Decimal('100'))
+        self.assertEqual(values['lines'][0]['planned_from_location'], 10)
+        self.assertTrue(values['lines'][0]['cancel_plan'])
+        self.assertEqual(values['lines'][1]['lotqt'], 2)
+        self.assertEqual(values['lines'][1]['quantity'], Decimal('200'))
+        self.assertFalse(values['lines'][1]['cancel_plan'])
+
+    def test_plan_transport_applies_each_planning_line(self):
+        'plan transport wizard applies each line independently'
+        wizard = lot_module.LotPlanTransport()
+        lotqt_a = Mock(
+            lot_p=Mock(line=Mock()),
+            lot_s=None)
+        lotqt_b = Mock(
+            lot_p=None,
+            lot_s=Mock(sale_line=Mock()))
+        wizard.plan = Mock(lines=[
+            Mock(
+                lotqt=lotqt_a,
+                cancel_plan=False,
+                quantity=Decimal('100'),
+                planned_from_location=Mock(id=10),
+                planned_to_location=Mock(id=20),
+                planned_transport_type='vessel',
+                planned_from_date=datetime.date(2026, 7, 1),
+                planned_to_date=datetime.date(2026, 7, 5),
+                planned_note='A'),
+            Mock(
+                lotqt=lotqt_b,
+                cancel_plan=False,
+                quantity=Decimal('200'),
+                planned_from_location=Mock(id=11),
+                planned_to_location=Mock(id=21),
+                planned_transport_type='truck',
+                planned_from_date=datetime.date(2026, 7, 6),
+                planned_to_date=datetime.date(2026, 7, 8),
+                planned_note='B'),
+        ])
+        Lot = Mock()
+        Lot.skip_quantity_consistency.return_value.__enter__ = Mock()
+        Lot.skip_quantity_consistency.return_value.__exit__ = Mock()
+        LotQt = Mock()
+        pool = Mock()
+        pool.get.side_effect = [Lot, LotQt]
+
+        with patch('trytond.modules.purchase_trade.lot.Pool',
+                return_value=pool):
+            state = wizard.transition_planning()
+
+        self.assertEqual(state, 'end')
+        LotQt.plan_to_transport.assert_any_call(lotqt_a, Decimal('100'), {
+            'planned_from_location': 10,
+            'planned_to_location': 20,
+            'planned_transport_type': 'vessel',
+            'planned_from_date': datetime.date(2026, 7, 1),
+            'planned_to_date': datetime.date(2026, 7, 5),
+            'planned_note': 'A',
+        })
+        LotQt.plan_to_transport.assert_any_call(lotqt_b, Decimal('200'), {
+            'planned_from_location': 11,
+            'planned_to_location': 21,
+            'planned_transport_type': 'truck',
+            'planned_from_date': datetime.date(2026, 7, 6),
+            'planned_to_date': datetime.date(2026, 7, 8),
+            'planned_note': 'B',
+        })
+        Lot.assert_lines_quantity_consistency.assert_called_once()
+
     def test_lot_shipping_defaults_planned_locations(self):
         'link to transport carries planned locations into shipment create'
         wizard = lot_module.LotShipping()
diff --git a/modules/purchase_trade/view/lot_plan_transport_line_tree.xml b/modules/purchase_trade/view/lot_plan_transport_line_tree.xml
new file mode 100644
index 0000000..74bce35
--- /dev/null
+++ b/modules/purchase_trade/view/lot_plan_transport_line_tree.xml
@@ -0,0 +1,12 @@
+<tree editable="1">
+    <field name="lotqt" width="90"/>
+    <field name="cancel_plan" width="90"/>
+    <field name="quantity" width="100"/>
+    <field name="unit" width="80"/>
+    <field name="planned_from_location" width="120"/>
+    <field name="planned_to_location" width="120"/>
+    <field name="planned_transport_type" width="110"/>
+    <field name="planned_from_date" width="120"/>
+    <field name="planned_to_date" width="120"/>
+    <field name="planned_note" width="180"/>
+</tree>
diff --git a/modules/purchase_trade/view/lot_plan_transport_start_form.xml b/modules/purchase_trade/view/lot_plan_transport_start_form.xml
index c95d176..fc5b850 100644
--- a/modules/purchase_trade/view/lot_plan_transport_start_form.xml
+++ b/modules/purchase_trade/view/lot_plan_transport_start_form.xml
@@ -1,20 +1,4 @@
-<form col="2">
-    <label name="cancel_plan"/>
-    <field name="cancel_plan"/>
-    <label name="planned_from_location"/>
-    <field name="planned_from_location"/>
-    <label name="planned_to_location"/>
-    <field name="planned_to_location"/>
-    <label name="planned_transport_type"/>
-    <field name="planned_transport_type"/>
-    <label name="planned_from_date"/>
-    <field name="planned_from_date"/>
-    <label name="planned_to_date"/>
-    <field name="planned_to_date"/>
-    <label name="quantity"/>
-    <field name="quantity"/>
-    <label name="unit"/>
-    <field name="unit"/>
-    <label name="planned_note"/>
-    <field name="planned_note"/>
+<form col="4">
+    <field name="lines" colspan="4" mode="tree"
+        view_ids="purchase_trade.plan_transport_line_view_tree"/>
 </form>