More Flexibility in WFM Pro

It recently came to my knowledge that in WFM Daily Rules are suggested to be kept at a 4 hour variable scheduling window. We are a business that supports 36 restaurants. Our call center hours are 6am - 12am and our agents work very flexible hours. We were not aware nor does it say in the help center that there are large limitations to the flexible start time window in the daily rules. There is no documentation saying that times and variations need to be limited for a schedule to be ran successfully.