HOW TO ADD COLUMNS IN CATEG.ENT.BOOK ENQUIRY

The ENQUIRY CATEG.ENT.BOOK uses the NOFILE.CATEG.ENT.

In STANDARD.SELECTION of NOFILE.CATEG.ENT the routine E.CATEG.ENT.BY.CONCAT is used to build the list of relevant IDs in the format Y.CAT.NO:"*":CATEG.ENT.ID:"*":YOPEN.BAL:"*":APPLN

With this IDs back in the ENQUIRY the routine E.CATEG.ENQ2 is used to populate the R.RECORD that is used to present the data.
Both routines can be found in T24.BP.

If you want to add additional data that can't be accessed using LINK you can either add a routine to get the values or change E.CATEG.ENQ2 to append another field to R.RECORD (or better create a copy under a new name and use it in your own enquiry).

"consol.key and narrative field from CATEG.ENTRY" should be easy to add using LINK, e.g.

FIELD.NAME - NARR
OPERATION - @ID
CONVERSION - F *,2,1
CONVERSION - L CATEG.ENTRY,NARRATIVE

FIELD.NAME - CONSOL.KEY
OPERATION - @ID
CONVERSION - F *,2,1
CONVERSION - L CATEG.ENTRY,CONSOL.KEY

Depends on your release, may be its GLOBUS.BP or T24_BP.

But have you tried using LINK ???

As shown in first reply. Just add your fields in that way (with the respective COLUMN)