In GlassHive you can view and unsubscribe contacts on the contact profile page or using bulk actions in table view.
Contact Profile page
Go to the contacts profile page and click on the 3-dots
2. Select "Edit"
3. Choose either "subscribed" or "unsubscribed"
4. Click on "Save"
5. If you have unsubscribed a contact you will be able to see it on there profile page
Can I unsubscribe a list?
You could only unsubscribe a list. You can do this by hovering over the list you want to unsubscribe. Select "Unsubscribe" and follow the prompts.