Scheduling option for updates without LU Server

According to the current options in SEPM if you want to schedule the updates for client you should use a liveupdate server for updating clients. It will be nice if we can schedule updates irrespective of the updating method (we may use direct updating method from SEPM or through GUP).If such an option is available we will have a good control over the updation timing and it will be easy for managing the network load (in places where bandwidth is two low or the network is already having a good load because of cust. Applications).It will be also helpful in places we are complains like because of definition scanning (the scan which will happen if a new update comes) pc is getting slow.