If you only need specific fields, specify them through this parameter. Otherwise, all visible fields will be retrieved. Parameter values depend on fieldKeyType setting (using field names or IDs or dbFieldName).
Filter records from the linked table that can be selected by the specified link cell. For example, for one-to-many or one-to-one relationship fields, already selected record IDs will not appear.
Filter records from the linked table that are already selected by this link cell. Note: viewId, filter, and orderBy will not take effect in this case, as selected records have their own order.