After going to the “Subscribers' Area”, you have two ways of adding segments. One way is using the filter system. Create different conditions and press "Save as segment". You will also need to name your segment and click “Create”.
Or you can go into “Segments” and click the “Create Segment” button. Give it a name and click “Create”. Now use the filter system to create conditions that you want your subscribers to meet.
Example: We want this segment to only have subscribers from the “Secret Landing Page” group. And we only want the subscribers who signed up in the last 30 days. However, we also want subscribers from another group to be in this segment. In this case, instead of using AND we will add another set of conditions under OR. We’ll choose the “Groups” “Belong to” “New Members” and save the changes. There we go. The segment is now saved.
If you click on the “Segments” tab, we will get an overview of all of the segments. In this case, there is only one. Here you can view, rename and delete your segments. Note: deleting the segment will not delete your subscribers from your account. When you have more segments, you will also be able to sort them by Segment Name, Date Created, Subscribers, Open Rate and Click Rate.