Information on Schedule Automatically feature in 15.1 P6 Pro

Hello,

There seems to be vague information around this feature and not much in the help guides. I have tried to use it in a project schedule and I don't see anything changing or the project scheduling after any activity changes. Are there more details out there on this feature? A customer came back to a colleague saying that the feature doesn't work. Just trying to get some info on it.

Thanks,

Bob