A creative can have at least one click target. By setting multiple click targets, you can direct users to different parts of your site, related to the target they clicked on. Those targets are defined inside the banner with a Screenad command. See the ‘Using Screenad Clicks’ page for more information about defining exit clicks inside your material.
You can add and edit clicks to your creative by pressing the “Add Clicks” button. You'll get a popup where you can fill in the default click, add extra clicks by pressing ‘extra click’. The filled in URLs are only for preview purpose.