server-tools/attachment_synchronize/views/attachment_view.xml

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

    <record id="view_attachment_improved_form" model="ir.ui.view">
        <field name="model">ir.attachment.metadata</field>
        <field name="inherit_id" ref="base_attachment_queue.view_attachment_improved_form" />
        <field name="arch" type="xml">
            <field name="url" position="after">
                <field name="task_id" attrs="{'required': [('file_type', '=', 'export')]}"/>
                <field name="storage_backend_id"/>
            </field>
        </field>
    </record>

    <record id="view_external_attachment_tree" model="ir.ui.view">
        <field name="model">ir.attachment.metadata</field>
        <field name="inherit_id" ref="base_attachment_queue.view_external_attachment_tree" />
        <field name="arch" type="xml">
            <field name="file_type" position="after">
                <field name="task_id"/>
                <field name="storage_backend_id"/>
            </field>
        </field>
    </record>

</odoo>