sql_export_view.xml

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


    <record id="sql_export_mail_view_form" model="ir.ui.view">
        <field name="model">sql.export</field>
        <field name="inherit_id" ref="sql_export.sql_export_view_form" />
        <field name="arch" type="xml">
            <button name="export_sql_query" position="after">
                <button
                    name="create_cron"
                    string="Create Cron"
                    type="object"
                    attrs="{'invisible': ['|', ('state', '=', 'draft'), ('mail_user_ids', '=', [(6, False, [])])]}"
                />
            </button>
            <field name="copy_options" position="after">
                <field
                    name="mail_condition"
                    attrs="{'invisible': [('cron_ids', '=', [(6, False, [])])]}"
                    groups="base.group_system"
                />
            </field>
            <page name="page_sql" position="after">
                <page name="page_mail" string="Mail">
                        <group string="Users Notified by e-mail">
                            <field
                            name="mail_user_ids"
                            nolabel="1"
                            widget="many2many_tags"
                            colspan="2"
                        />
                        </group>
                        <group string="Partners Notified by e-mail">
                            <field
                            name="mail_partner_ids"
                            nolabel="1"
                            widget="many2many_tags"
                            colspan="2"
                        />
                        </group>
                        <group string="Crons" groups="base.group_system">
                            <field
                            name="cron_ids"
                            nolabel="1"
                            colspan="2"
                            domain="[('model_id', '=', 'sql.export')]"
                        />
                        </group>

                </page>
            </page>
        </field>
    </record>

</odoo>