What are the event key words in interactive reporting ?

Event keyword
Event
AT LINE-SELECTION
Moment at which the user selects a line by
double-clicking on it or by positioning the
cursor on it and pressing F2.

AT USER-COMMAND
Moment at which the user presses a
function key.
TOP-OF-PAGE DURING LINE-
SELECTION
Moment during list processing of a
secondary list at which a new page starts.