IBM 3270 User Manual page 23

The Scale Line
Placing your display in change format mode causes the scale line to appear in the
operator information area. The operator information area Is the bottom row on the
screen.
A scale line cursor column indicates the current cursor position. The normal
cursor in the entry area is replaced with a reverse-image cursor.
Look at Figure 3-7 for an illustration of the Entry Assist scale line.
r- First Screen Column
Left
Margin
U
Tab
Stop
Lost Screen Column -i
I
End-of-Line Right i
Signal (Bell) "1 |~ Margin j
Position i i 1
.+ 1-.<- + 2 — +- —3 — + 4—+ 5 +
6- 7—+ -
Left
Margin-
Area
Figure 3-7. Entry Assist Scale Line
Entry
Area
j Right
Margin
Area
The Scale Line Cursor
The scale line cursor is either a reverse-image cursor or an opaque box,
depending on the type of display unit you have. When you set margins, tab stops,
or the audible "end of line" signal, the scale line cursor disappears and you
immediately see the character that you entered. Moving the cursor or pressing the
Alternate Cursor (ALT CURSR) key will cause the cursor scale to be displayed.
The Normal Cursor
The normal cursor and the scale line cursor move together in a horizontal
direction. The normal cursor moves independently in a vertical direction. If you
look at the normal cursor and the scale line cursor, you can see the relationship of
a position on the scale line with a position on the page.
Note: You can use the "Move Cursor to Next Word" and "Move Cursor to Previous
Word" keys for rapid positioning of the cursor while in change format mode.
(See "Typematic Move Cursor to Next Word" on page 3-10, and "Typematic
Move Cursor to Previous Word" on page 3-11.)
Reset Change Format Mode
Press the Change Format key again to reset the change format mode, erase the
scale line, and return the operator information area to its previous function.
The cursor returns to the cursor display mode and to the screen position it
occupied before you entered the change format mode. The new margins, tabs, and
audible "end of line" signal are now operational and remain in effect until they are
changed or until the power to the controller is turned off.
Chapter 3. Using the Entry Assist Capabilities 3-5