Click on ‘Create new task’ on the main page with your tasks and then choose that you want to create a task with unfollowing option.
You can choose which users you want to unfollow: only who are followed by Instaswell or all users at all
Then you can choose one extra option: unfollow only non-active users or only users who have not follow you back.
Ghosts are users who does not like your media.
The unfollowing function unfollows all users who has been followed by Instaswell more than 24 hours ago and they have not followed you back.
Please note, that Instagram unfollowing limits are much lower than following, and the unfollowing will go slower than following.