Make Challenges a little harder but with Hint button

I’m working through the React ‘camp’ and realise that the example code given in the challenges contains comments about where to place code. This is encouraging me to look for the green comments instead of reading the code, and figuring out where to place extra code to complete to challenge.
If you made those comments invisible to begin with, and had a “Hint” button, then if a user can’t follow the instructions, because it might not be intuitive enough, or clear enough, then at least they can hit the “Hint” button, and see exactly the same as we currently do.
This would keep me (or the next developer) more focussed on the code as opposed to looking for the comments, which won’t be there in real life.