res_config_view.xml

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

		<record id="view_tr_barcode_configuration" model="ir.ui.view">
			<field name="name">tr barcode settings</field>
			<field name="model">tr.barcode.settings</field>
			<field name="inherit_id" ref="tr_barcode.view_tr_barcode_configuration"/>
			<field name="arch" type="xml">
				<group name="barcode_config" position="after">
					<group name="barcode_default_picking_config">
                        <label for="id" string="Picking"/>
                        <div>
							<div name="default_picking" invisible="1">
								<field name="picking_config_id" class="oe_inline"
	                                    on_change="onchange_picking_config_id(picking_config_id, context)"/>
								<field name="picking_model_id" class="oe_inline"/>
							</div>
							<div name="default_picking_field">
								<label for="picking_field_id"/>
								<field name="picking_field_id" class="oe_inline"
										domain="[('model_id', '=', picking_model_id), ('ttype', '=', 'char')]"
										attrs="{'required':[('picking_config_id', '!=', False)]}"/>
							</div>
							<div name="default_picking_width">
								<label for="picking_width"/>
								<field name="picking_width" class="oe_inline"/>
							</div>
							<div name="default_picking_height">
								<label for="picking_height"/>
								<field name="picking_height" class="oe_inline"/>
							</div>
							<div name="default_picking_hr_form">
								<label for="picking_hr_form"/>
								<field name="picking_hr_form" class="oe_inline"/>
							</div>
							<div name="default_picking_barcode_type">
								<label for="picking_barcode_type"/>
								<field name="picking_barcode_type" class="oe_inline"
										attrs="{'required':[('picking_config_id', '!=', False)]}"/>
							</div>
						</div>
					</group>
				</group>
			</field>
		</record>

    </data>
</openerp>