Hi, Manua! I played with a Steffie Graf racket when I played. I like your approach - it reminds me of the map challenge we just had. Layers are very versatile, and if they make sense to you, there's nothing wrong with that! You can often get the same effect for the learner in multiple ways, so then the choice is about what helps you organize and understand how things work on the back end, both for originally building a course and for any updates. You might want to try building your map interaction with Insert > Marker (and put the content on the marker pop-ups) to make a similar build a little faster. You could also keep your layers but select all of your number icons and make them a button set. It adds some functionality among the items without a lot of work on your end. Have fun discovering new ways to do things!