Entity/CustomFieldsGroup.php
public function addCustomField(\Chill\CustomFieldsBundle\Entity\CustomField $customField)
    {
        $this->customFields[] = $customField;

        return $this;
    }
public function addCustomField(\Chill\CustomFieldsBundle\Entity\CustomField $customField)
    {
        $this->customFields[] = $customField;

        return $this;
    }
Add customField

@param \Chill\CustomFieldsBundle\Entity\CustomField $customField

@return CustomFieldsGroup