Back Tab Key; Moving The Cursor One Character Space; Vertical Positioning Keys - IBM 3270 Operator's Manual

68
Operator Console Keyboard
Back Tab Key
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Moving the Cursor
One Character Space
Horizontal Positioning Keys
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Vertical Positioning Keys
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Operation of the Back Tab key is affected by the current
position of the cursor. When the cursor is located within an
unprotected field at a location other than the first character
location of that field, the Back Tab key repositions it to the first
character location.
When the cursor is already located in the first location of an
unprotected field, the Back Tab key repositions it to the first
character location of the first unprotected field to the left of its
present location.
Back Tab is the only cursor control key that does not have
typamatic capability.
Pressing either of the two horizontal positioning keys (right-.,
or left.-) moves the cursor in the direction of the arrow, one
character location at a time. The keys are typamatic so that you
can move the cursor any distance quickly with only one
depression of the key. If you hold down the control key that
moves the cursor to the right, the cursor will move off the right
side of the screen and will reappear one line lower on the left
side (as explained on page 14).The cursor will also wrap when
moved to the left and will reappear one line higher on the right
side of the screen.
Pressing the two vertical cursor positioning keys (up
i,
or
down! ) moves the cursor in the direction of the arrow, one line
at a time. The keys are typamatic to allow you to move the
cursor any number of lines quickly and with only one depression
of the key. If a vertical positioning key is held down, cursor wrap
occurs. In this case, the cursor reappears in the same character
position on the opposite edge of the screen that it occupied
before movi ng off the screen.