Window groups

By default, Oracle includes a few window groups to combine the days of the week in a maintenance plan. Although it looks pretty, the benefits are uncertain. As only one window can remain open at any given time, using windows in a sensible way requires a lot of planning; and in the end, there will be combinations of windows and schedules making it harder to understand what made a job start (or stop). The restriction of only one open window at any given time makes it hard to use. It would be more convenient to have the ability to keep multiple windows open at the same time. To stick to the predefined days of the week schedules, why not have the window Monday open along with the window morning? For scheduling, a job is tied to a window.