How to make messages overflow to next page in fixed message area in Content Author

Product Feature: Message Box 
Content Author allows to create messages which can further be integrated with Designer. Doc1 Designer allows to create a message area where messages will appear. Consider a situation where there are three messages that can be accommodated in specified area and total four messages qualifies to appear then based on their priority or occurrence, one will be dropped. Priority are associated with messages defined in Content Author. 

It is not possible to overflow these messages to next page. Message box is a static fixed height object, and it has to all fit on a single page. 
In case it is required to overflow the message across pages use of Message Stream in recommended. Usage of "Message Stream" is covered in Doc1 Designer User Guide.
UPDATED:  April 14, 2017