Does C# not allow me to group files by filter groups?
<p>I'm used to grouping my C++ projects so my VS project has multiple filter groups, which do not map directly to actual directories on my disk... e.g. all my .cpp files might be in c:\code\MyApp and my 'folders' in VS split this between headers/source or graphics/sound/io and so on</p>

<p>In C# it doesn't seem to work this way - if I add a folder to my C# project it creates a physical directory on my disk. If I add-existing-file to this folder, it copies the file across.</p>

<p>Do folders replace filters in C#?</p>