Unfortunately I don't think such hint mechanism can be integrated into ToMI.
SoMI have the wonderful hint system, as it is a game that have been played millions of times over the decades. The original game have no hints per se. But there have been enough feedback, discussions and talks all round to give the developers an idea where are what type of hints to give.
For a new game, it is extremely hard to know what puzzle is going to stump a gamer; when to give hints; and how much information is too much information. It will need a lot of game-testing, and a lot of follow-up work between the testers and the designers to come out with a feature that will provide suitable hints, something like the way SoMI did with their hint system. And at this point, I really don't see how the company can afford the luxury to put in the hint system.