server-tools/external_file_location/attachment_view.xml

<?xml version="1.0" encoding="UTF-8"?>
<openerp>
    <data>

        <record id="view_attachment_improved_form" model="ir.ui.view">
            <field name="model">ir.attachment.metadata</field>
            <field name="inherit_id" ref="attachment_metadata.view_attachment_improved_form" />
            <field name="arch" type="xml">
            <field name="url" position="after">
                <field name="sync_date"/>
                <field name="state"/>
                <field name="state_message"/>
                <field name="task_id"/>
                <field name="location_id"/>
                </field>
            </field>
        </record>

        <record id="view_external_attachment_tree" model="ir.ui.view">
            <field name="model">ir.attachment.metadata</field>
            <field name="arch" type="xml">
                <tree string="Attachments" >
                    <field name="name"/>
                    <field name="datas_fname"/>
                    <field name="task_id"/>
                    <field name="location_id"/>
                    <field name="type"/>
                    <field name="create_date"/>
                    <field name="state"/>
                </tree>
            </field>
        </record>

        <record id="view_external_attachment_search" model="ir.ui.view">
            <field name="model">ir.attachment.metadata</field>
            <field name="arch" type="xml">
                <search string="Attachments">
                    <field name="name" filter_domain="['|', ('name','ilike',self), ('datas_fname','ilike',self)]" string="Attachment"/>
                    <field name="create_date"/>
                    <filter icon="terp-stage"
                        string="URL"
                        domain="[('type','=','url')]"/>
                    <filter icon="terp-stock_align_left_24"
                        string="Binary"
                        domain="[('type','=','binary')]"/>
                    <separator/>
                    <filter name="my_documents_filter" 
                        string="My Document(s)"
                        icon="terp-personal"
                        domain="[('create_uid','=',uid)]"
                        help="Filter on my documents"/>
                    <field name="create_uid"/>
                    <field name="type"/>
                    <filter string="Pending" domain="[('state', '=', 'pending')]"/>
                    <filter string="Failed" domain="[('state', '=', 'failed')]"/>
                    <filter string="Done" domain="[('state', '=', 'done')]"/>
                    <group expand="0" string="Group By">
                        <filter string="Owner" icon="terp-personal" domain="[]" context="{'group_by':'create_uid'}"/>
                        <filter string="Type" icon="terp-stock_symbol-selection" domain="[]" context="{'group_by':'type'}" groups="base.group_no_one"/>
                        <filter string="Company" icon="terp-gtk-home" domain="[]" context="{'group_by':'company_id'}" groups="base.group_multi_company"/>
                        <filter string="Creation Month" icon="terp-go-month" domain="[]" context="{'group_by':'create_date'}"/>
                        <filter string="State" domain="[]" context="{'group_by': 'state'}"/>
                    </group>
                </search>
            </field>
        </record>

        <record id="action_attachment" model="ir.actions.act_window">
            <field name="name">Attachments</field>
            <field name="type">ir.actions.act_window</field>
            <field name="res_model">ir.attachment.metadata</field>
            <field name="view_type">form</field>
            <field name="view_mode">tree,form</field>
            <field name="view_id" eval="False"/>
            <!-- <field name="domain">[('task_id', '!=', False)]</field> -->
            <field name="search_view_id" ref="view_external_attachment_search"/>
        </record>

        <record id="ir_attachment_view2" model="ir.actions.act_window.view">
            <field eval="10" name="sequence"/>
            <field name="view_mode">tree</field>
            <field name="view_id" ref="view_external_attachment_tree"/>
            <field name="act_window_id" ref="action_attachment"/>
        </record>

        <record id="ir_attachment_view3" model="ir.actions.act_window.view">
            <field eval="10" name="sequence"/>
            <field name="view_mode">form</field>
            <field name="view_id" ref="view_attachment_improved_form"/>
            <field name="act_window_id" ref="action_attachment"/>
        </record>

        <menuitem id="menu_ir_attachment" 
            parent="menu_file_exchange"
            sequence="20"
            action="action_attachment"/>

    </data>
</openerp>