You can use the RELOcate command. In this example, I want to move the file CMS1 SAS from my root directory to the directory named '.SAS'. A second method is to access your directories with a letter value. This is done with the 'ACCess' command. You can use any unused letter for your filemode.
Directories can also be access manually.
Doing so will search all your directories and subdirectories to find a specific file. While SFS offers many options, some cautions need to be observed. All these files are optional so don't worry if you don't have them on your 'A' disk.