Some products document RACF commands to use CSDATA
For example:
Users. Definitions for user IDs are contained within RACF custom data fields, which are contained in a CSDATA segment.
What is the equivalent in Top Secret for CSDATA segments of RACF?
Release : 16.0
Component : Top Secret for z/OS
The CSDATA fields in RACF are installation-defined data related to custom fields.
The equivalent of Custom Fields in Top Secret are the fields defined in FDT.
To define new fields to the FDT you can use the following command :
TSS ADDTO(FDT) FDTNAME(field-name)
FDTCODE(hex-code)
MAXLEN(nn)
[DISPLAY(display-name)]
[SEGMENT(segment-name)]
[ATTR(MIXED)][(NONDISP)][(NOXTRPRP)][(XTRPRP)]
There is a detailed explanation of the user fields at Maintain the FDT Record.