I'm trying to write some review files for a midterm, and so i'm categorizing each topic on the exam in a project. So for example, my array project will only relate to arrays, but no 2-d arrays, as i just want to play around with the outputting of arrays in this project. Then i have a project of 2-d arrays, vectors etc... each only with one .cpp in them. How do i add more .cpp files within a project, that branches down from project or from sources? I hope this makes sense, Thanks!