<?xml version="1.0"?>
<openerp>
  <data>

    <!-- res.users form view -->
    <record model="ir.ui.view" id="view_users_form">
      <field name="name">res.users.form.add.printer.tray</field>
      <field name="model">res.users</field>
      <field name="inherit_id" ref="base_report_to_printer.view_printing_users_form" />
      <field name="arch" type="xml">
        <field name="printing_printer_id" position="after">
          <field name="printer_tray_id"/>
        </field>
      </field>
    </record>

  </data>
</openerp>

<?xml version="1.0"?>
<openerp>
  <data>

    <!-- res.users form view -->
    <record model="ir.ui.view" id="view_users_form">
      <field name="name">res.users.form.add.printer.tray</field>
      <field name="model">res.users</field>
      <field name="inherit_id" ref="base_report_to_printer.view_printing_users_form" />
      <field name="arch" type="xml">
        <field name="printing_printer_id" position="after">
          <field name="printer_tray_id"/>
        </field>
      </field>
    </record>

    <!-- res.users form view (My preferences popup) -->
    <record model="ir.ui.view" id="view_users_form">
      <field name="name">res.users.form.printing.tray</field>
      <field name="model">res.users</field>
      <field name="inherit_id" ref="base_report_to_printer.view_printing_users_prefs" />
      <field name="arch" type="xml">
        <field name="printing_printer_id" position="after">
          <field name="printer_tray_id"/>
        </field>
      </field>
    </record>

  </data>
</openerp>

Add the printer tray choice in the 'My preferences' popup
Add the printer tray choice in the 'My preferences' popup
