Currently we have an available time and a deadline time, it would be great if we could also have a time where all the updates that could be downloaded to a client and then install all of the ones that it can until a reboot is needed, and then still wait until the deadline fore that reboot.

we give our users 2 weeks t o download and install, but even after communicating with them that installing will no force the reboot until the 2 weeks are up, the majority still insist on not installing until the deadline, and of course that means on the deadline date, all the machines on that local subnet are trying to update at the same time, with the common complaints.