Content can be scheduled for release and pull to and from the site at a future. You use the scheduling tab of a module, content item, or page to accomplish this. All times, as labeled are Eastern Standard Time.

You can schedule a single item that is already released on the website to be released at a future time. The limitation here is that you can only schedule it for a SINGLE future time. If you schedule the item for tomorrow, publish that out, and then make a change and publish it for release the next day, the one in the middle will NOT be release. Only a single future release is support for any given item.

If you want to schedule a whole bank of items, we suggest using a content list of items, all with specific release dates. That way, you can even setup the list to display the release and pull date in the Agility list settings, so you can see exactly when each item will be visible.

As for previewing changes in scheduling, you can you use the Preview Date selector on the preview bar to switch the date that you are previewing changes on. Note that this only takes effect when previewing in Published mode. Previewing in staging mode ALWAYS shows the latest version of an item, regardless of release date.

When you click on the "Preview Date" field, the date/time picker will appear, allowing you to switch to a future date to see the changes that have been scheduled for that time.

I hope this has given you some insight as to how the Content Scheduling feature of Agility works, and perhaps given you some ideas about how you can make it work for you.