How to: Add Solution Folders to a Solution
A Solution Folder can be added to the solution or to an existing Solution Folder. By nesting Solution Folders, you can create greater organizational structure.
Solution Folders are an organizational tool in Solution Explorer; corresponding Windows folders are not created. We recommend that you organize your projects on disk in the same way that you organize them in the solution.
To add a Solution Folder to a solution
In Solution Explorer, select the solution or a Solution Folder.
On the Project menu, select Add New Solution Folder.
— or —
In Solution Explorer, right-click the solution or a Solution Folder, choose Add, and then choose New Solution Folder.