It’s not mandatory to store user data files in the installation directory; they can be stored anywhere as long as the full path is included in the Library File field of the symbols property. One advantage of storing them in the installation directory is that admin permission is required to modify or delete the files and if using an editor such as Notepad++ it will always ask if one wants to complete any edits as an administrator - an extra precaution against making a mistake. A second is that one doesn’t have to remember the full path to a NAS drive on Mars! Also all the other symbol text files are stored in the installation directory, so it doesn’t seem unreasonable to keep user files in the same space?