4d51ede8_rks_Search_UI_2_9___Lucidworks__Description
[Parameter] Copy This Field to Fields [Fields API Attribute Name] copy_fields [Description] 
This allows copying the values in this field to another field or fields for use in searching or results display. For example, by default the author field is copied to the author_display field, which is used to display author names in results lists.
Field Configuration - LucidWorks Search UI 2.9 - Lucidworks
Description