IBM 3270 Manual page 142

Choosing the Screen You Want to Use
If you have set up your own screens in addition
to screen 0, you will need to know how to choose
the one you want to use. To choose a screen
profile:
1.
Press the Shift and ChgSc keys.
The next screen in numerical order will
appear. The screens are kept in numerical
order.
2. To go to the next screen in order, press the
Shift and ChgSc keys again.
You can also choose a screen in work station
control mode:
1.
Press the WSCtrl key.
2. Type the number of the screen you want.
The screen you requested will appear.
3. Press the WSCtrl key again to go back to
your work.
Chapter 9. Rearranging the Windows 9-45