Following the step :
PROCESS BEFORE OUTPUT.
MODULE status_0101.
implement the MODULE status_0101 .
write the code :
MODULE status_0101 OUTPUT.
* SET PF-STATUS 'xxxxxxxx'.
* SET TITLEBAR 'xxx'.
IF SY-TCODE = 'ME23N'.
LOOP AT SCREEN.
IF SCREEN-NAME = 'EKKO_CI-ZZPOHDR_SPIN'. //field name
SCREEN-INPUT = 0.
MODIFY SCREEN.
ENDIF.
ENDLOOP.
ENDIF.
ENDMODULE. " STATUS_0101 OUTPUT