Everything you need to know about overlays is in this guide: A Guide to Using & Animating OVERLAYS
If you want to make a car move, you can use a looping background where the background moves on it’s own to make it appear as if the car is driving. Just place the overlay and character where you want them in the scene. You can find looping background in the art catalog unter the tag “Loop”. Or if you want to use a regular background and have a car overlay and character drive and move, read this guide: 🚗 HOW TO: Drive into / Drive Off the scene with Character inside
To have 2 dressing games in 1 episode, you need to change the label and the goto in the 2nd dressing game. Just add “2” at the end of both. So if the label is “dressing_game1”, then just change it to “dressing_game2”. You will also need to find the goto and change that to match the label.