If I want to offer a family plan but the sharing is limited to people in the same household (ex. spouse), is it possible to make a condition of the sharing restricted to the same address. In other words can CBSubs + the Family Plan plugin somehow check to make sure the addresses match between the primary plan holder and the person they shared it with.
Other potential variations can be a business that purchases a plan for their employees and the share restriction is the email address used by the shared member has to be the same company domain.