ORIENT/modules/backend/behaviors/relationcontroller/partials/_button_delete.htm

<button
    class="btn btn-sm btn-default oc-icon-trash-o"
    onclick="$(this).data('request-data', {
        checked: $('#<?= $this->relationGetId('view') ?> .control-list').listWidget('getChecked')
    })"
    disabled="disabled"
    data-request="onRelationManageDelete"
    data-request-confirm="<?= e(trans('backend::lang.relation.delete_confirm')) ?>"
    data-trigger-type="enable"
    data-trigger="#<?= $this->relationGetId('view') ?> .control-list input[type=checkbox]"
    data-trigger-condition="checked"
    data-stripe-load-indicator>
    <?= e(trans('backend::lang.relation.delete')) ?>
</button>