VisualStudio project with multiple sourcefiles of the same name?

Question

i have a largish C++ project, with source-files organised in multiple folders (on the filesystem).

in two of these folders, i have files with the same name. e.g.

Answer 1

Use

$(IntDir)%(Directory)

as "Object File Path".

%(Directory) contains the absolute path of the file without the volume and without the filename itself. This solution should work at least in VS 2019 and can be applied to a project directly.