How can I assign the interrupt action to a function key in 4GL?

As the title states, I would like to bind the Control-C interrupt action to function key F5 and the Accept action to function key F9. I have managed to bind the Accept option to Control-B but doing OPTIONS ACCEPT KEY F9 does not work; I just get a beep. example: ~~~~~~~~ : : OPTIONS ACCEPT KEY F9 : OPEN WINDOW wind001 AT 1,1 WITH FORM "stabcr01" OPEN FORM screen0 FROM "stabcr01" DISPLAY FORM screen0 CALL SET_COUNT(jrectrov) DISPLAY ARRAY wscanrec TO screen0.* LET jrecsele = ARR_CURR() : : In this case I would like to choose one record using function key F9 instead of ESC.