IBM 3270 Operator's Manual page 67

DUPKey
Pressing the DUP key displays an overscored asterisk (
* )
when the A,a/A
switch is set to A,a; when the A,a/A switch is set to A, only the asterisk is dis-
played. Also, as a result, the cursor advances to the first character location of
the next input field.
The DUP operation is intended to provide you with a fast method of filling in
the information that is the same for every document (such as the date). The
DUP key causes a special code to be sent to the host system which tells the pro-
gram that a duplication operation is needed. The program you are working with,
however, determines the use of the DUP key. To verify its use, ask the appro-
priate person in your organization about its use or refer to the appropriate user's
program guide.
FIELD MARK Key
Pressing the FIELD MARK key displays an overscored semicolon ( -; ) when the
A,a/A switch to set to A,a; when the A,a/A switch is set to A, only the semi-
colon is displayed. The FIELD MARK key is used when operating with an
unformatted display to indicate the end of a field to the program.
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