IBM 3174 User Manual

If you don't have an audible-alarm feature on your display,
ignore the part that discusses the "end of line" signal.
Press CHG FMT again to get back into change
format mode. (The scale line appears.)
Press the CLEAR key. (This clears all existing tab stops.)
Refer to the line below with three Xs on it. Move the cursor
along the scale line until it lines up with the first X.
Press the Tab key. The tab key is the key above the
shift lock key with the arrow that points to the right.
The underscore symbol (_) appears on the scale line. This indicates
that a tab stop is set at this position on the line.
X X X
Set tab stops at the other two X positions.
If you accidentally set a tab stop at an incorrect
position, place the cursor under it and press the Delete
Character key to clear the tab stop.
We will use these tab stops in a minute.
Move the cursor along the scale line until it lines
up about five positions to the left of the right margin
and type the * symbol. This sets the "end of line" signal
at that position on the line.
We will use the signal in a minute.
To clear the "end of line" signal, place
the cursor under it and press the Delete Character
key.
Press the CHG FMT key to turn off change format
mode. The scale line disappears.
Now you have margins, tab stops, and an "end of line"
signal set. Let's try them.
Use the spacebar to move the cursor along the following
blank line. The "end of line"
signal sounds as the cursor passes through the signal
position on the line.
Return the cursor to the left margin and press the
Tab key. The cursor moves to the next tab stop.
Press the Tab key a few times and see how the cursor moves
from tab stop to tab stop.
Chapter 5. Entry Assist Tutorial 31

IBM 3174 Specifications

General

Brand	IBM
Model	3174
Category	Controller
Language	English