Add objects on the surface of another object

Hi

I’m a beginner in Unity currently working on a project that connects a self-developed touch sensor with the virtual environment.

What I want to accomplish is to link my touch sensor with a 3D cube, so that when I touch a certain location of the sensor, the corresponding location on the cube surface will shine.

My prototype of the sensor can distinguish 9 different locations and I think one way to carry out my goal is to set up 9 locations on the surface of a cube that instantiates light when certain input is given. Can anyone tell my how to add different objects on the surface of a pre-existing object?

Any better idea to accomplish my goal is more than welcome.

Thanks

It’s really simply, just add an empty gameobject (top toolbar