I've just recently installed SMS 2011 on a server and added several computers to it's domain. Now I've noticed that I cannot change power settings (even when logged in as user who is in Domain Administrator role, let's call it Admin for future reference). After some googling I ended up adding Admin to the local administrators group using Group Policy Management Editor (as I have no experience in server administration I'm not sure I did it right: I went to Policy Management, selected Forest: xxxxx -> Domains -> xxxxx -> Group Policy Objects -> Windows SBS Client - Windows 7 and Windows Vista Policy -> go to Settings tab on the right and right-click on anything and select Edit to go to Group Policy Mangement Editor -> User Configuration -> Preferences -> Control Panel Settings -> Local Users and Groups -> right-click on it and select New -> Local Group, then set Action to "Update", Group Name to "Administrators (built-in)", and added Admin to Members). After that I was able to change the power-savings settings on client computers(when logged in as Admin).

Now the question: what should I do to allow any domain user to change this settings? Notice, I do not want to force some predefined power plan to all computers, I want to set it up so that any domain user on any client computer would be able to select a different power plan and to make any adjustments to the selected one. Thank you for any suggestions, just keep in mind that I'm newbie (but not completely dumb), so please answer accordingly :)