Is it possible to create a scheduled action to shutdown workstations at a specific time if they have been left on by errant users?

Our management are looking at ways to reduce energy costs and if Zen could do this then it will be a big plus for retaining the software.

We are currently using Zen 7 but if either Zen 7 or Zen configuration manager will do this it will make my job a bit easier.

Thanks in anticipation.