wpml-config.xml

<wpml-config>
    <custom-fields>
        <custom-field action="copy">_event_start_date</custom-field>
        <custom-field action="copy">_event_end_date</custom-field>
        <custom-field action="copy">_event_occurrence_date</custom-field>
        <custom-field action="copy">_event_occurrence_last_date</custom-field>
        <custom-field action="copy">_event_recurrence</custom-field>
        <custom-field action="translate">_event_tickets</custom-field>
        <custom-field action="copy">_event_tickets_url</custom-field>
        <custom-field action="copy">_event_all_day</custom-field>
        <custom-field action="copy">_event_display_options</custom-field>
        <custom-field action="copy">_event_featured</custom-field>
        <custom-field action="copy">_event_free</custom-field>
        <custom-field action="copy">_event_gallery</custom-field>
    </custom-fields>
    <custom-types>
        <custom-type translate="1">event</custom-type>
    </custom-types>
    <taxonomies>
        <taxonomy translate="1">event-category</taxonomy>
        <taxonomy translate="1">event-tag</taxonomy>
        <taxonomy translate="1">event-location</taxonomy>
        <taxonomy translate="1">event-organizer</taxonomy>
    </taxonomies>      
</wpml-config>