IBM 3270 User Manual page 38

3. Move the cursor so that it lines up with the number 3 starting
this sentence. Type the
<
symbol on the scale line. Note that
the previous
<
symbol disappeared and only the one you typed
remains on the scale line. This is the new left margin. The scale
line cursor also disappeared, but will reappear when you press
the Cursor Move key.
4. Move the cursor until it lines up with the last character onthis
line, and type the
>
symbol. This sets your right margin at that
position.
5. Press the CHG FMT key again. This takes you out of change
format mode. The scale line disappears, and the cursor returns
to the position it was in when you entered change format mode.
You now use the margins you just set.
6. Hold the New Line key down. Note how the cursor stays at the
new left margin you just set as it goes down the screen.
7. Type a line of words in the space provided below, such as:
32
anything anything anything anything
Try to type a word into the right margin. You will observe that,
as you type a character into the right margin, the partially typed
word is moved to the following blank line. That is word wrap in
operation. Try it now.
Did you see word wrap work? If not, go back to step 1 above
and try again.