If you have encountered a problem you can't solve, it's great if you post your .capx, then someone can look through it and fix that problem for you.
But if you're looking to add something new to your game you should at least try yourself first. If someone just adds it to your game for you, you don't learn anything from it.
So you should try and understand what's happening in my example, then try to implement it in your game. And then, if you have specific problems, post a question here in the forum.