Cross Reference Groups (xrefs) Node Layout
The database.cross_reference_groups section of a profile CFG file describes the cross-reference tables (groups) for the profile.
This node has one subnode for each cross reference group. The name of the subnode is the internal name of the cross-reference groups. Within that subnode it has a label node, which is the label of the xref group (for display purposes). Within that subnode there is also a subnode called "fields" which lists the database fields of the xref group. The "fields" subnode has one subnode for each database field, with the name of each field subnode equal to the internal name of the database field, and the value of each field subnode empty.