IBM 3274 Planning, Setup, And Customizing Manual page 73

Note: During customizing, only certain key positions are valid ..
Only. those key positions shown below are to be used.
Data Entry
Keyboard
When ENTER is specified, press the New Line key.
When RESETis required, press the PF10 key.
Figure 4-1. Valid Key Positions during Customizing
4-8
is required, press
the PF8 key.