How to change folder structure for solution / project

When I create a solution and project I generally use the same structure of...

visual studio 2013 folder

                     projects folder

                                     Solution Name Folder (contains the .sln object)

                                                    Project Name1 folder (contains source for project1)

                                                    Project Name2 folder (contains source for project2)

                                                    Project Name3 folder (contains source for project3)

...but somehow in one solution I ended up with the structure...

visual studio 2013 folder

                     Project Name1 folder (contains source for project1)

                     projects folder

                                     Solution Name Folder (contains the .sln object)                                       

                                                    Project Name2 folder (contains source for project2)

                                                    Project Name3 folder (contains source for project3)

...when I open the solution I can see the Project Name1 source no problem and can see in the properties window for the project that the path is specified to point at the Project Name1 folder directly under the Visual Studio 2013 folder so that explains why it works but I would like to move it under the Solution Name Folder.

I copied the Project Name1 folder  from directly under the Visual Studio 2013 folder  to under the Solution Name Folder thinking that I could edit the path to the project in Visual Studio but the path appears to be uneditable.

Can someone show me how to change the path to the project in visual studio?  Or show me  the correct way to accomplish the object?

Thanks much for any help, Roscoe