RevenueWell gives you the option to replicate either a campaign draft, or a campaign that's already been sent. Hover over the campaign to show the option to replicate.
This creates a new draft with the exact same content, filters, and other settings as the original campaign.
The only difference you may notice is the list of recipients in the "Recipients" step. This list will show the recipients that match your filters under current conditions.
For example, let's say you previously sent a campaign using the filter "unscheduled patients who are past due for a recall by 0 to 3 months." Sending this type of campaign will yield different recipients at different times within the calendar year, based on their recall date.