To allow the user to process only the first row of the selection table on the selection screen, you use the following syntax:
SELECT-OPTIONS <seltab> FOR <f> ..... NO-EXTENSION .....
As a result, the pushbutton for multiple selections does not appear on the selection screen, and multiple selections are not available to the user.
DATA WA_SPFLI TYPE SPFLI.
SELECT-OPTIONS AIRLINE FOR WA_SPFLI-CARRID NO-EXTENSION.
The following standard selection screen appears: