How to create a 3D Cityengine campus with interactive icons?

Hi, So, I am trying to create this in Unity (minus the revolving camera): https://s3.amazonaws.com/3d.cl3ver.com/0G7W2?tryitlocation=3&autoplay=1 I have already created my 3D campus in Cityengine. What would be the workflow for creating interactive icons that hold information (my icons will be used to display event information, for which the database will be created with SQLite)? From what I have seen, I believe that I would have to make each building an object first. I am new to Unity and still learning the basics. I am open to coding in either Javascript or C#.