Time Restriction Count down

I've purchased a number of "time restriction" solutions but none of them are complete. At least for what I need. Norton Family is definetly the closes, only missing one component. Norton Family would be awesome if it gave your child a heads up that his / her time is coming to an end. Give for instance, a five and one minute verbal and pop-up, so the child can exit their game or save their report without the computer locking. Norton does however, have an option to allow the kid to continue playing with a parent notification. But this option falls short when Grandma is watching the little ones and doesnt have the constitution or fortitude to get little Johny of the computer. Hopefully this feature is in the works, or this suggestion is helpful in shaping future releases.

 

               I want to buy because this product. But I dont want to buy a third incomplete solution.