Segment Value Security and PPM

Summary:

Can someone please advise what kind of security can be accomplished in PPM by Segment Value Security rules in GL?
Is there any white paper available on this subject?

Can any security be accomplished for the Project/Grants Accountant roles without having separate Business Units/Ledgers?

Any guidance would be greatly appreciated.

Thank you very much.

Content (please ensure you mask any confidential information):

Can someone please advise what kind of security can be accomplished in PPM by Segment Value Security rules in GL?
Is there any white paper available on this subject?

Can any security be accomplished for the Project/Grants Accountant roles without having separate Business Units/Ledgers?