Terminal Control
Line Modify Mode
When
the
terminal
is
in
Remote mode
and
Character
mode,
and
you
are
communicating
interactively
with
a
host
computer, you
may
sometimes
enter
an
erroneous
character
string
to which
the
computer
responds
with
an
error
message.
If
the
character
string
is
a
lengthy
one
and
the
error
consists
of
only a few
characters,
it
is a
nuisance
to
have
to
retype
the
entire
string.
In
such
a case, you
may
instead
enable
Line Modify mode (which
temporarily
switches
the
terminal
to a special form ofBlock mode).
You
may
then
move
the
cursor
to
the
erroneous
line
on
the
display
and
correct
the
character
string.
When
the
string
is
edited
to
your
satisfaction, you
retransmit
the
line
to
the
host
computer
by
pressing
either
the
1:1
key
or
the.
key.
Note
that
while
Line
Modify mode
results
in
a block
transmission,
it
is
completely
indepen-
dent
of
the
Block mode function described
earlier
in
this
section (you do
not
have
to
first
enable
Block mode).
In
fact, Line Modify mode is a
feature
that
was
specifically
designed
for
use
when
the
terminal
is
operating
in
Character
mode,
and
will function only
in
Character
mode.
From
the
keyboard, you
enable
Line
Modify mode
using
the
LINE
MODIFY
key.
Line
modify
mode is
automatically
disabled
when
you
press
either
1:1
or
•.
If
you
change
your
mind
and
wish to
disable
Line
Modify mode before
retransmitting
the
command
string,
press
the
LINE
MODI
FY
key
again
and
the
terminal
will
return
to
normal
Character
mode.
For
each
line,
the
terminal
remembers
the
position of
the
first
character
entered
from
the
keyboard.
Then
when
you
re-transmit
a line
in
modify mode, only
the
portion
of
the
line
entered
from
the
keyboard
is
retransmitted;
any
prompt
characters
preceding
the
command
string
are
ignored
by
the
terminal.
For
more
detailed
information
about
this
feature
refer
to
the
discussion
of
the
Start
Col
field
of
the
Terminal
Configuration
menu
in
Section 3.
Modify
All
Mode
When
the
terminal
is
in
Character
mode, you
can
enable
ModifyAll mode,
which
switches
the
terminal
to a special form
of
Block mode. Modify All mode
is
the
same
as
Line
Modify mode
except
that
it
is
not
disabled
when
you
press
1:1
or
•.
From
the
keyboard, you
enable
and
disable
Modify All mode
using
the
MODI
FY
ALL
key.
From
a
program
executing
in
a
host
computer, you
enable
and
disable
Modify All mode
using
the
following escape sequences:
ENABLE:
Ec
&k1M
DISABLE: Ec
&kOM
A Modify All mode
designator
is
maintained
in
non-volatile memory.
When
you
change
modes
using
the
MODI
FY
ALL
key, you also
alter
that
mode
designator
in
non-volatile
memory.
When you
change
modes
using
the
escape sequences, however,
the
designator
is
not
altered.
2-3
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