<script>
( function( $ ) {
    $( document ).ready( function() {
        var button = $( '.wpc-button' );
        button.each( function() {
            $( this ).click( function() {
                var index = $( this ).parent().parent().index();
                accItem = $( '#wpc-acc .et_pb_accordion_item_' + index );
                actionTrigger = accItem.find( '.et_pb_toggle_title' ).trigger('click');
            } )

        } )
    } );
} )( jQuery );
</script>