Schedules - Allow following other schedules

I tend to find that I need to stagger schedules, one for image updates, one for test pool updates and then one for production pool updates and all in that order. If I need to perform those on different days following each other, using the included every third x day of the month schedule doesnt always work depending on what day the month started. This has caused some automated patching to be missed. The request is to allow a schedule to follow another schedule. Once something has a schedule attached to it, such as an images "set as image", then any other schedule could be set to follow that task. There could be a selection to follow xyz scheduled task and an option to offset the hours or days from that task. Then that would allow a chain of scheduled tasks to follow each other. This would also prevent a task from occurring if a previous scheduled task failed.