IBM 3270 Operator's Manual page 79

Initially, the designator characters in most of the selection fields on your screen
will be question marks. To select an item (field), position the cursor within the
selection field that you want to select; then press the CURSR SEL key. The
question mark at the beginning of the selected field changes to a greater-than
sign to indicate that the field has been selected.
If you select the wrong field, you can correct your mistake by selecting the field
again with the CURSR SEL key. This changes the greater-than sign back to a
question mark and deselects the field. The correct field can then be selected.
After you have completed your selections from the screen (more than one selec-
tion can be made), locate a selectable field (attention field) that has an amper-
sand character or a blank position for a designator character. Selecting the
attention field turns on the Do Not Enter - Time ( )(
·:f )
message and indi-
cates to the program that you have completed your selections. The data you
have selected can now be acted upon by the program.
The way you end a CURSR SEL operation depends on the program, and each
job could be different. Always refer to the user's program guide for the pro-
gram with which you are working for specific instructions.
CLEAR Key
Pressing the CLEAR key while holding the ALT key down
(1)
erases or blanks
every character location on the screen except the Operator Information Area,
(2) establishes an unformatted display, and (3) positions the cursor to the first
location in line 1.
The CLEAR key does not change the keyboard shift status of your display
station, but it removes the NUM message in the Operator Information Area if
it is on. Also, if you are using a 960-, 2560-, 3440-, or 3564-character capacity
display station that is formatted for the full screen capacity, pressing the CLEAR
key may cause your display station to be unformatted as a 480- or 1920-
character display.
When the CLEAR key is pressed, your display station signals the program, infor-
ming it that the CLEAR key has been pressed. While this signaling is taking
place, the Do Not Enter - Time ( )(
':l )
message appears, disabling your key-
board. Most programs reply to the signal by turning off the Time message. This,
however, is up to the program. Therefore, the Time message may remain on after
a CLEAR key depression. If you are not familiar with the program's response to
a CLEAR key depression, ask the appropriate person in your organization about
the program's response or refer to the appropriate user's program guide.
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