SETSCREEN( To-Screen, To-Vector, From-Vector )
SETSCREEN has no parent instructions. It is triggered on MENU screens or when a field lookup is triggered.
Data is passed from the From-Vector to the To-Vector by field name. The field with data in the To-Vector needs to exist with the same name in the From-Vector.
Multiple SET commands for the same parent instruction and the same To-Screen are processed in order they are displayed on the Instructions tab. This process is significant when the To-Vector is referenced multiple times in different SET* commands.