Providing a report or inquirie, solving the problem of the issue, described below: ISSUE ===== In a project, tasks are planned, and employees are created as resources. Resources are scheduled until the project tasks are completely staffed. Thereafter, a plan change (e.g., due to illness or vacation) resulted and was taken in account. The over-scheduling of the employees was removed from the original project, so that the status was "Partially staffed". The resulting "gaps" in the planning should be visible or at least retrievable, so that they can be refilled with qualified resources.