PVO for GL Secondary Balancing Segment KFF?

Summary:

On a quest for chart of account segment descriptive labels (KFFs) for secondary balancing segment.

Content (please ensure you mask any confidential information):

We found some information related to Key Flex Field PVOs for Chart of Account Segments in older BI Apps documentation, which matched our experience in the BICC interface for Account, Cost Center, and Balancing Segment (Primary). Our COA also uses the optional secondary balancing segment. We cannot find any tree or non-tree PVOs for the associated KFF. When reviewing OTBI logs, we can see the SQL referencing "FscmTopModelAM.AccountBIAM.FLEX_VS_GL_SECONDARY_TRACKING_VI" -- This appears to be the PVO we would need, but cannot find it available in BICC.