I wouldn't move it because the location is hard wired into the installation directory. But you can set up another folder to hold your template files's wherever you want and put a shortcut to it (or the individual files) in Frame's default \template location.
Franz, I remember a suggestion from the early days of e-mail that sigs should take a maximum of four lines; especially with the Amtsgericht and UI, yours looks more like company note-paper ... Would Systec let you get away with less?