There are many solutions to this depending on how you want to structure things.
How are the actors and the buttons making it into the game atm?
- you’re placing the spotlight actors manually in the level?
- you’re adding buttons manually to the scroll box?
Perhaps I can suggest something that fits into your current setup. Normally I’d have the actors populate the scroll box with the widgets they create on the fly. Neat, efficient and easy to maintain but it may not suit your needs.