I need to add 3 optional columns to an existing form view, with the menu on the right side with the three dots.(The one to add columns or remove them)

Right there I need to add 3 columns to choose:

• Internal reference
• Manufacturer reference I
• Manufacturer

This is my current view:

xml version="1.0" encoding="UTF-8" ?>
<odoo>
    <record model="ir.ui.view" id="view_inventory_form_inh">
        <field name="name">view.inventory.form.inhfield>
        <field name="model">stock.inventoryfield>
        <field name="inherit_id" ref="stock.view_inventory_form" />
        <field name="arch" type="xml">
            <field name="location_ids" position="before">
                <field
                    name="manufacturer_ids"
                    widget="many2many_tags"
                    domain="[('is_manufacturer', '=', True)]"
                    attrs="{'invisible':[('filter','!=','manufacturers')],
                    'readonly': [('state', '!=', 'draft')]}"
                />
            field>
        field>
    record>
odoo>

I already added the fields in the model. 

Does anybody know how I add these columns in the view ?