In order to build a Spark Carousel in Adobe, you can get the source code first, which is available here.
If you decided to change your layout, at any time, after you have created your layout, it's just a matter of changing out a line of code. You can download the wheel layout at wheel layout. Go to that site and download it at EasyFlex. Beta 1 no longer works. It has to be done in Beta 2. In order to make it work, you will need to make some changes: for example, in the code, ScrollUnit...