For searching the reference in predictive input different fields of catalog can be used. By default the predictive input is used by searching the description.
You can add additional fields for searching by predictive input using those steps:
1. In Designer mode, open Catalogs tree and select your Catalog.
2. Use Double-Click or F2 to open the Catalog properties.
3. Select Forms tab.
4. Locate Input by String field. Edit and select additional fields of catalog to use in predictive input.
Warning: using of many additional fields in predictive input will produce a larger index of a table. So use this feature with caution.