Doublespeed Horizontal Positioning; Vertical Positioning; Backspace; Fwd And Back - IBM 3180 1 User Manual

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Double-Speed Horizontal Positioning
Pressing either of the double-speed horizontal positioning
keys, while holding an Alt key down, moves the cursor in
the direction of the arrow, two character positions at a
time. The keys are typematic which causes the cursor to
move at twice the speed of the normal horizontal
positioning keys. When using these keys, the cursor
wraps at the right and left sides of screen in the same
manner as when you use the normal horizontal positioning
keys.
Vertical Positioning
The vertical cursor positioning keys move the cursor in
the direction of the arrow, one line at a time. The keys are
typematic which allows you to move the cursor any
number of lines quickly by pressing the key once. 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 (top or bottom line) of the
screen that it occupied before moving off the screen.
Backspace
The Backspace key moves the cursor one location to the
leftfor each time you press the key. This key operates
exactly like the horizontal (left) positioning key and also is
typematic. This duplication of key function is provided for
operator convenience.
Fwd and Back
An Alt key must be held down when you use the Fwd
(forward) or the Back (backward) keys. The forward and
backward keys are used to move lines (scroll) of
information onto the display or to move lines of
information off the display.
These keys are not supported on all systems. For
information about the use of these keys, contact your
system programmer.