You cannot create new schemes that I'm aware of, however just about everything else can be done by using the Windows built in tool powercfg.exe.
There are some good examples of this here:
http://www.symantec.com/commun...um/4033/batch-files-dsOne example is provided here:
powercfg /change "Home/Office Desk" /monitor-timeout-ac 30
powercfg /change "Home/Office Desk" /monitor-timeout-dc 5
powercfg /change "Home/Office Desk" /disk-timeout-ac 0
powercfg /change "Home/Office Desk" /disk-timeout-dc 30
powercfg /change "Home/Office Desk" /standby-timeout-ac 0
powercfg /change "Home/Office Desk" /standby-timeout-dc 25
powercfg /hibernate on
powercfg /change "Home/Office Desk" /hibernate-timeout-ac 0
powercfg /change "Home/Office Desk" /hibernate-timeout-dc 0
powercfg /change "Home/Office Desk" /processor-throttle-ac none
powercfg /change "Home/Office Desk" /processor-throttle-dc adaptive
Be aware, as the DS article mentions that the changes usually are made for the the logged in user. I've had better luck using this in the build process as documented in the comments here:
http://www.symantec.com/commun...uild-those-base-images