It is possible to disable a BQE CORE user's access to a specific screen using Security Permissions. However, disabling access to a specific tab on a screen is only possible if there is a corresponding security permission that controls the access. For example, it is possible to disable access to the Projects > Project Center > Overview tab by unchecking the security permission Show Project Overview under the Project feature in the user's security profile. Check CORE Help Center for details.
CORE Help Center