No-Auto-Default
When this style is set, the current default button is not changed.
When this style is not set, the Push-Button control becomes the default button when activated. The default button is the button the system considers depressed when the user presses the [Enter] key. Only one button can be the default for each window. This is the default setting.
 
Example - Define a push-button with no-auto-default style
screen section. ...   03 screen-1-pb-3 Push-Button      line 12.1      column 15.2      size 10.7 cells       lines 5.3 cells       id 3      title "Cancel"      no-auto-default      .  |