from odoo import models, fields class ProductTemplate(models.Model): _inherit = 'product.template' is_kitchen_item = fields.Boolean( string='Show in KDS', default=False, help="If checked, this product will appear in the Kitchen Display System when ordered." ) class ProductProduct(models.Model): _inherit = 'product.product' is_kitchen_item = fields.Boolean( related='product_tmpl_id.is_kitchen_item', store=True, readonly=False, )