Grass Valley DD10 part 2 - Manual (Page 18)

3.6 Disk / File menu Diamond digital DD10
190
If you press the associated function key, a window with a new key assignment
appears in the menu, where the new file name can be entered if you wish to copy
from the file level to the disk level.
The name of the file may have up to 12 characters (XXXXXXXX.EXT).
Press the associated function key to copy the file selected in the source directory
under its new name into the destination directory.
Press the associated function key to delete the character left of the current cursor
position in the editing line (only when copying from file level to disk level).
Press the associated function key to delete the entire entry in the editing line (only
when copying from file level to disk level).
Press the associated function key to cancel the copying procedure.
COPY
OK
RUBOUT
CLEAR
CANCEL