Display a notice during State change

Alright, Plan A wont work- Plan B is not looking much better. Let's try for Plan C. When a user transitions to "Coded", "Verified" or "Documented" is there a way to just display a message of some kind? Without blocking them or disallowing the transition to occur. I just want to add a message reminding them to enter their time. I see that you can use .required() and assert() to block them until something happens. I do not want to block the user- just display a message.