If your organization is producing a high volume of campaigns every week/month, viewing all those campaign types at once may be a bit overwhelming. To help you filter down the types of campaigns you have in production, the new Campaign Types filter will help.
For example, you have a large number of campaigns running over the next few weeks or months, but you want to view just the Event Campaigns that are upcoming. By selecting only the Event campaign type, you'll narrow down your view to only see your upcoming Event campaigns.
Note: This filter will not change the content that is in that calendar view, it will simply help you narrow down the types of campaigns you have set up.