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   To modify a user function, proceed in the following way:

     . Press the Dictionary button from the dBsee main menu.

     . Access the Symbols environment by pressing the relative
       button.

     . Position the cursor in correspondence to the function
       needing modification.

     . Press Space Bar to edit the function.

     . Enter the necessary modification, remembering that in order
       to edit the function, it is necessary to use the Space Bar.

     . Confirm everything with F10.