Create a Logical Folder
Right click on the node in the project tree where you wish to create a new logical folder.For example, to create a logical folder at the top level, right click on the chip icon () with your project name. Or, to create a sub-folder in the Source Files folder, right click on the Source Files folder ( ). Then, select New Logical Folder from the pop-up menu.
By default, the new folder will be named "New Folder n", where n is an integer, but you can rename it to almost anything you like.