If I understand you correctly you want to add a custom field to this list of value, right?

​@Link Yes, I’d like to add a custom field to this list. It shows Object Class Id but doesn’t show Object Class description. I need that. 

In the view FA_OBJECT_GROUP the column “OBJECT_CLASS_DESCRIPTION” is available.

But not in the client:

select OBJECT_GROUP_ID,DESCRIPTION,OBJECT_CLASS_MANDATORY,OBJECT_CLASS,ACQUISITION_REASON,DISPOSAL_REASON,SERIES_ID 
from &AO.FA_OBJECT_GROUP 
where COMPANY = :p0 

I don't see a way to add a custom field there.