Can you hide a human task from appearing in a request view?

[SJEaton]

Hi, when a human task is actioned in my workflows, the details are currently appearing in the customers request view (see example below).  Is there a way of hiding this from the customer view? I can't find any options to change the view in the HT node.    

Thanks, Sam

[Steve Giller]

Visibility of Tasks on the Timeline is controlled by guest.ui.app.com.hornbill.servicemanager.operation.defaultVisibility