This isn’ too bad but in the future please use code fences:
```
code goes here
```
Create a Design Pattern: Proxy Item to represent the scene. You will want to use a Number or a String Item.
Create a Rule triggered by the Proxy Item receiving a command.
In the Rule check the state of the Proxy Item and turn ON or OFF the lights based on the scene selected.
Put the Proxy Item on your Sitemap with a Selection or as a Switch using MAPPINGS.