I am looking for some help on how I might go about (if possible) setting from an Administrative level a default action of GWM starting when windows Starts. I am also contemplating setting a default idle time for everyone and I am looking for help in where that setting may exists.

I am familiar with where to accomplish these actions in the client itself but I need to set it at a higher level and then lock the setting.
I'd like to get GMW started when a user gets on their computer and then go idle after some time (7-10mins)