Do you support resource planning including what-if analysis

If you enable resource planning each resource on a task has a planned/remaining effort separate to the duration of that task, and we calculate and report on resource utilization for a single task, for all tasks in a project and across projects. Based on our work-schedules assigned to both resources and teams or groups we can report on available vs. required load to get a sense or over or under-utilized resources into the future. We have developed an interactive resource planning workbench to allow project managers to combine resource load balance charts and assignment/updates into a single screen