Terminology differences for ISPF users

On the ISPF editor, commands that are used in the prefix area are referred to as line commands. Commands that are used on the command line are referred to as primary commands. In the z Systems® LPEX editor, however, the commands that are used in the prefix area are referred to as the prefix commands, while the commands that are used on the command line are referred to as line commands.

Prefix command area
Prefix commands can be typed in the prefix area in the editor. These commands apply only to the line or lines that they are typed on. To access the prefix area, make sure that the prefix area option is enabled. To verify this option, open the Preferences window and select LPEX Editor > Controls.
Line command area
Press the Esc key anywhere on the editor to position the cursor at the beginning of the command window. Type the command on the window and then press the Enter key to apply the command.