New to Three.js looking for help in the right direction

Your code as a graphic can hardly be read. Better would be a live example (e.g. jsfiddle) or copy your source code into your post and format it with the symbol 2021-10-19 20.08.45

Take a look at the Collection of examples from discourse.threejs.org.

See there
ChangeColorOfFaceByClick
AddMarkerOnMouseClick

:slightly_smiling_face: