IBM 3270 Manual page 134

For example,
SCRN:WINDOWS WINDOWS
O:ABCD A:PC1
1:
2:BA
3:DCA
4:
5:
6:
7:
8:
9:
B:Hosn
C:NOTEPAD1
D:NOTEPAD2
Screens
1
and
4
through 9 are not being used.
5. You can press the
PFI key again to remove
the list.
6. Type the number of the profile that you want
to use.
Your screen will go blank. If you choose 1,
the line will change to:
WSCTRL WINDOW= SCREEN=l
Chapter 9. Rearranging the Windows 9-37