Hii,

Add a Custom Print Button on the Right
There is no built-in support to float header buttons individually. But you can:

• Add a custom Print button to the header.
• Hide the default Print menu if needed

Example:
<record id="custom_sale_order_form_view" model="ir.ui.view">

    <field name="name">sale.order.form.print.right</field>

    <field name="model">sale.order</field>

    <field name="inherit_id" ref="sale.view_order_form"/>

    <field name="arch" type="xml">

        <xpath expr="//header" position="inside">

            <button name="%(sale.action_report_saleorder)d"

                    type="action"

                    string="Print"

                    class="btn btn-primary o_form_button_right"

                    context="{'report_type': 'pdf'}"/>

        </xpath>

    </field>

</record>

Then add CSS like this to align it to the right (in your custom module's static/src/css/style.css):
.o_form_button_right {

    margin-left: auto;

    margin-right: 0;

}

Or override the layout with OWL if you're targeting Odoo 16+ and need full control.

Display sale.order.line Description in a Separate Column
Odoo always renders name under product_id in the sales order. To work around this:
Create a custom field like x_description and use that
# Inherit sale.order.line and add a computed field

class SaleOrderLine(models.Model):

    _inherit = 'sale.order.line'

    x_description = fields.Text(string="Description", compute="_compute_x_description")

    def _compute_x_description(self):

        for line in self:

            line.x_description = line.name

XML:
<record id="custom_sale_order_form_quote" model="ir.ui.view">

    <field name="name">custom.sale.order.form.quote</field>

    <field name="model">sale.order</field>

    <field name="inherit_id" ref="sale_management.sale_order_form_quote"/>

    <field name="arch" type="xml">

        <!-- Hide inline 'name' under product -->

        <xpath expr="//field[@name='order_line']/tree/field[@name='name']" position="attributes">

            <attribute name="invisible">1</attribute>

        </xpath>

        <!-- Add 'x_description' as its own column -->

        <xpath expr="//field[@name='order_line']/tree/field[@name='product_id']" position="after">

            <field name="x_description" string="Description"/>

        </xpath>

    </field>

</record>

i hope it is help full