diff --git a/printer_tray/__openerp__.py b/printer_tray/__openerp__.py
index a00ddd5..35c7f85 100644
--- a/printer_tray/__openerp__.py
+++ b/printer_tray/__openerp__.py
@@ -29,6 +29,7 @@
  'data': [
      'users_view.xml',
      'ir_report_view.xml',
+     'printer_view.xml',
      ],
  'test': [],
  'installable': True,
diff --git a/printer_tray/printer_tray.py b/printer_tray/printer_tray.py
index 186f2a1..ee25ca8 100644
--- a/printer_tray/printer_tray.py
+++ b/printer_tray/printer_tray.py
@@ -27,10 +27,11 @@ class PrinterTray(models.Model):
     _description = 'Printer Tray'
 
     name = fields.Char(required=True)
-    system_name = fields.Char(required=True)
+    system_name = fields.Char(required=True, readonly=True)
     printer_id = fields.Many2one(
         comodel_name='printing.printer',
         string='Printer',
         required=True,
+        readonly=True,
         ondelete='cascade',
     )
diff --git a/printer_tray/printer_view.xml b/printer_tray/printer_view.xml
new file mode 100644
index 0000000..e0d4c29
--- /dev/null
+++ b/printer_tray/printer_view.xml
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="utf-8"?>
+<openerp>
+  <data noupdate="0">
+    <record model="ir.ui.view" id="view_printing_printer_form">
+      <field name="name">printing.printer.form</field>
+      <field name="model">printing.printer</field>
+      <field name="inherit_id" ref="base_report_to_printer.view_printing_printer_form"/>
+      <field name="arch" type="xml">
+        <xpath expr="//sheet/group[3]" position="after">
+          <group string="Trays">
+            <field name="tray_ids" nolabel="1">
+              <form>
+                <group>
+                  <field name="name"/>
+                  <field name="system_name"/>
+                </group>
+              </form>
+            </field>
+          </group>
+        </xpath>
+      </field>
+    </record>
+
+  </data>
+</openerp>