In Insert mode, when you edit PIC X fields with EBCDIC data, the required SOSI characters are added at the start and end of the edited text; you can view the added characters (0E and 0F) when the Hex pane is displayed. These characters are not added if you are editing an unformatted record or editing directly from the Hex pane.
(Switch to Exclusive Mode).
(Edit Record).
The field becomes editable.
(Save Record).
The record is updated.
(Save all changes to file); otherwise, the changes are saved to the data file automatically.