Restriction on cost/revenue reports on roles

Hello Experts,

My client deals with Power and Infra and has a requirement that at least 5 senior level project executives has to be assigned a same role within the same plant and should be authorized for all project profiles/types. These 5 senior executives should be able to view only cost/reports for the projects these executives are working on and should not be able to view all the projects in the plant.

Is that possible.? I am already in touch with Basis consultant and he is working on this. Is there any other alternative that can be look upon.?

Thanks,

Lakshmi Shukla