*
      *         RETURN to Display, 1st time thru
      *
      IF       --- PROCESS CODE               EQ     DISP
      T SET --- OPTION = RETURN
      T SET --- PROCESS CODE = DONE
      *
      *         END to go back to INPUT, 2nd time thru
      *
      F IF --- PROCESS CODE EQ DONE
      FT SET --- OPTION = END 

(All this can be done in a SUBR, called from Key Entry's Global Pre-Display event point.)

When the INQUIRY starts, PROCESS CODE is DISP, so the KEY ENTRY frame is skipped. Since the INQUIRY is constrained to one record, it displays only that record from the INPUT.

When the user presses ENTER or END after viewing the data, Key Entry executes again, but since PROCESS CODE is now DONE, it sets OPTION to END. INQUIRY ends, and control is returned to the parent.