<?xml version="1.0"?>
<list string="Event Mail Schedulers">
                <field name="event_id"/>
                <field name="template_ref" options="{'no_quick_create': True}" context="{'filter_template_on_event': True, 'default_model': 'event.registration'}" widget="EventMailTemplateReferenceField"/>
                <field name="scheduled_date"/>
                <field name="mail_count_done"/>
                <field name="mail_state" widget="event_icon_selection" string=" " nolabel="1" options="{'sent': 'fa fa-check', 'scheduled': 'fa fa-hourglass-half', 'running': 'fa fa-cogs'}"/>
            </list>
        