diff --git a/locale/ca_ES.po b/locale/ca_ES.po
index 4ae994a..a181d30 100644
--- a/locale/ca_ES.po
+++ b/locale/ca_ES.po
@@ -30,10 +30,18 @@ msgctxt "field:production.bom.input,step:"
 msgid "Step"
 msgstr "Pas"
 
+msgctxt "field:production.bom.input,step_sequence:"
+msgid "Step Sequence"
+msgstr "Ordre al pas"
+
 msgctxt "field:production.bom.output,step:"
 msgid "Step"
 msgstr "Pas"
 
+msgctxt "field:production.bom.output,step_sequence:"
+msgid "Step Sequence"
+msgstr "Ordre al pas"
+
 msgctxt "field:production.process,active:"
 msgid "Active"
 msgstr "Actiu"
@@ -154,6 +162,10 @@ msgctxt "field:production.route.operation,step:"
 msgid "Step"
 msgstr "Pas"
 
+msgctxt "field:stock.move,production_step:"
+msgid "Process"
+msgstr "Procés"
+
 msgctxt "model:ir.action,name:act_production_process"
 msgid "Production Process"
 msgstr "Process de producció"
@@ -174,6 +186,14 @@ msgctxt "model:production.process.step,name:"
 msgid "Production Process Step"
 msgstr "Pas de process de producció"
 
+msgctxt "view:production.bom.input:"
+msgid "BOM Inputs"
+msgstr "Entrades de la llista de materials"
+
+msgctxt "view:production.bom.output:"
+msgid "BOM Outputs"
+msgstr "Sortides de la llista de materials"
+
 msgctxt "view:production.process.step:"
 msgid "Description"
 msgstr "Descripció"
diff --git a/locale/es_ES.po b/locale/es_ES.po
index 8f68962..3d42718 100644
--- a/locale/es_ES.po
+++ b/locale/es_ES.po
@@ -30,10 +30,18 @@ msgctxt "field:production.bom.input,step:"
 msgid "Step"
 msgstr "Paso"
 
+msgctxt "field:production.bom.input,step_sequence:"
+msgid "Step Sequence"
+msgstr "Órden en el paso"
+
 msgctxt "field:production.bom.output,step:"
 msgid "Step"
 msgstr "Paso"
 
+msgctxt "field:production.bom.output,step_sequence:"
+msgid "Step Sequence"
+msgstr "Órden en el paso"
+
 msgctxt "field:production.process,active:"
 msgid "Active"
 msgstr "Activo"
@@ -154,6 +162,10 @@ msgctxt "field:production.route.operation,step:"
 msgid "Step"
 msgstr "Paso"
 
+msgctxt "field:stock.move,production_step:"
+msgid "Process"
+msgstr "Proceso"
+
 msgctxt "model:ir.action,name:act_production_process"
 msgid "Production Process"
 msgstr "Proceso de producción"
@@ -174,6 +186,14 @@ msgctxt "model:production.process.step,name:"
 msgid "Production Process Step"
 msgstr "Paso de proceso de producción"
 
+msgctxt "view:production.bom.input:"
+msgid "BOM Inputs"
+msgstr "Entradas lista de material"
+
+msgctxt "view:production.bom.output:"
+msgid "BOM Outputs"
+msgstr "Salidas lista de material"
+
 msgctxt "view:production.process.step:"
 msgid "Description"
 msgstr "Descripción"
diff --git a/production.py b/production.py
index bf61ef1..c18ca8c 100644
--- a/production.py
+++ b/production.py
@@ -166,8 +166,13 @@ class Step(ModelSQL, ModelView):
     name = fields.Char('Name', required=True)
     description = fields.Text('Description')
     sequence = fields.Integer('Sequence')
-    inputs = fields.One2Many('production.bom.input', 'step', 'Inputs')
-    outputs = fields.One2Many('production.bom.output', 'step', 'Outputs')
+    inputs = fields.One2Many('production.bom.input', 'step', 'Inputs', order=[
+            ('step_sequence', 'ASC'),
+            ])
+    outputs = fields.One2Many('production.bom.output', 'step', 'Outputs',
+        order=[
+            ('step_sequence', 'ASC'),
+            ])
     operations = fields.One2Many('production.route.operation', 'step',
         'Operations',
         context={
@@ -220,6 +225,7 @@ class Step(ModelSQL, ModelView):
 
 class BOMMixin:
     step = fields.Many2One('production.process.step', 'Step')
+    step_sequence = fields.Integer('Step Sequence')
 
     @classmethod
     def create(cls, vlist):
diff --git a/production.xml b/production.xml
index 3f79e85..5505a32 100644
--- a/production.xml
+++ b/production.xml
@@ -83,20 +83,28 @@
             <field name="perm_delete" eval="True"/>
         </record>
 
-
-        <!-- bom -->
+        <!-- production -->
         <record model="ir.ui.view" id="production_view_form">
             <field name="model">production</field>
             <field name="type">form</field>
             <field name="name">production_form</field>
             <field name="inherit" ref="production.production_view_form"/>
         </record>
+
+        <!-- production.bom.input -->
         <record model="ir.ui.view" id="bom_input_view_list">
             <field name="model">production.bom.input</field>
             <field name="type">tree</field>
             <field name="inherit" ref="production.bom_input_view_list"/>
             <field name="name">bom_input_list</field>
         </record>
+
+        <record model="ir.ui.view" id="bom_input_view_list_sequence">
+            <field name="model">production.bom.input</field>
+            <field name="type">tree</field>
+            <field name="name">bom_input_list_sequence</field>
+        </record>
+
         <record model="ir.ui.view" id="bom_input_view_form">
             <field name="model">production.bom.input</field>
             <field name="type">form</field>
@@ -104,12 +112,20 @@
             <field name="name">bom_input_form</field>
         </record>
 
+        <!-- production.bom.output -->
         <record model="ir.ui.view" id="bom_output_view_list">
             <field name="model">production.bom.output</field>
             <field name="type">tree</field>
             <field name="inherit" ref="production.bom_output_view_list"/>
             <field name="name">bom_output_list</field>
         </record>
+
+        <record model="ir.ui.view" id="bom_output_view_list_sequence">
+            <field name="model">production.bom.output</field>
+            <field name="type">tree</field>
+            <field name="name">bom_output_list_sequence</field>
+        </record>
+
         <record model="ir.ui.view" id="bom_output_view_form">
             <field name="model">production.bom.output</field>
             <field name="type">form</field>
diff --git a/view/bom_input_list_sequence.xml b/view/bom_input_list_sequence.xml
new file mode 100644
index 0000000..2c3e52c
--- /dev/null
+++ b/view/bom_input_list_sequence.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0"?>
+<!-- The COPYRIGHT file at the top level of this repository contains the full
+     copyright notices and license terms. -->
+<tree string="BOM Inputs" sequence="step_sequence">
+    <field name="product"/>
+    <field name="quantity"/>
+    <field name="uom"/>
+</tree>
diff --git a/view/bom_output_list_sequence.xml b/view/bom_output_list_sequence.xml
new file mode 100644
index 0000000..957c386
--- /dev/null
+++ b/view/bom_output_list_sequence.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0"?>
+<!-- The COPYRIGHT file at the top level of this repository contains the full
+     copyright notices and license terms. -->
+<tree string="BOM Outputs" sequence="step_sequence">
+    <field name="product"/>
+    <field name="quantity"/>
+    <field name="uom"/>
+</tree>
diff --git a/view/production_process_step_form.xml b/view/production_process_step_form.xml
index 6280a31..8e7e1ae 100644
--- a/view/production_process_step_form.xml
+++ b/view/production_process_step_form.xml
@@ -12,8 +12,10 @@
             <field name="description" colspan="4"/>
         </page>
         <page string="Products" id="products">
-            <field name="inputs" colspan="2"/>
-            <field name="outputs" colspan="2"/>
+            <field name="inputs" colspan="2"
+                view_ids="production_process.bom_input_view_list_sequence"/>
+            <field name="outputs" colspan="2"
+                view_ids="production_process.bom_output_view_list_sequence"/>
         </page>
         <page string="Operations" id="operations">
             <field name="operations" colspan="4"/>