Follow Up call result to add contact to a manual campaign at a desired time.

Instead of creating a rule for a call result to 'Schedule a call back', can the contact be added to list or campaign after a desired amount of time? For example, in the attached screenshot, I have the option to schedule a call back in 1 month. I think it might be helpful to have the contact be added to a list or campaign automatically after a month the call result was selected. I really like the idea of Manual Campaigns that Batchdialer provides but I find myself having to add contacts manually to the campaign. I think this would decrease the amount of steps and time to perform follow up calls.