There is a so called "Hidden Directory" inside HOME that your HP uses for storing alarms and user-keys, this directory is part of the operating system of the HP48, inside Filer48 it looks like this:. Well with Filer48 you have full access to this directory, I just have to warn you that whatever you do: DO NOT PURGE any files inside this directory, like I said this is a system directory and if you change its contents you will get a "MEMORY CLEAR"