Controls window 

Use the Controls window to specify input and output variables, messages and subroutines. For convenience, this window lists all the fields in the current screen by name and description.

You must have turned on recording (choose Generate ® Record from the code generator menu) to add elements with the Controls window. However, the field display is always available.

For information on using the Controls window, see:

Adding a Program Variable

Creating a New Subroutine

Inserting a Message Check