DISABLE Example

10    ON KEY 1 GOTO Here
20    SET KEY 1,"LIST"
30    DISP "Hit F1"
40    WHILE Count<>5
50      Count=Count+1
60      WAIT 1
70      IF Count=2 THEN DISABLE !Once count=2, then pressing F1 will do nothing.
80    END WHILE
90 Here: PRINT "Reached Here! Count = ";Count
100   SET KEY 1,"EDIT"
110   END