Visual studio already supports this in 2015 and older iirc, at least for C# and SQL projects, but it's an undocumented feature. You have to close and re-open t

Visual studio already supports this in 2015 and older iirc, at least for C# and SQL projects, but it's an undocumented feature. You have to close and re-open the project if you add/remove a file so it notices that it's different. part of the new project system that grew out of the ill-fated project.json is to make this a first-class experience, but again that's focusing on the .csproj, I have no idea if it applies to C++.