How to assign F1 help to the selection screen fields

Hi All,
I have a requirement.I have to create a button named "HELP" at the side of Execute button in the selection screen.If I place my cursor in the selection screen field and I press that "HELP" button, I should get the Documentation help for that field.
Please suggest me on this.
Thanks in advance.
Sreeharsha Singuru

Hi sreeharsha,
here a short example:
TABLES: MARA.
TABLES: SSCRFIELDS.
TYPE-POOLS: ICON.
DATA: CURSORFIELD(20).
SELECTION-SCREEN: BEGIN OF LINE.
SELECT-OPTIONS: S_MATNR FOR MARA-MATNR.
SELECTION-SCREEN: END   OF LINE.
SELECTION-SCREEN: BEGIN OF LINE.
SELECT-OPTIONS: S_MTART FOR MARA-MTART.
SELECTION-SCREEN: END   OF LINE.
SELECTION-SCREEN: SKIP 3.
SELECTION-SCREEN: BEGIN OF LINE.
SELECTION-SCREEN: PUSHBUTTON (10) PB01 USER-COMMAND HELP.
SELECTION-SCREEN: END   OF LINE.
AT SELECTION-SCREEN.
GET CURSOR FIELD CURSORFIELD.
CASE SSCRFIELDS.
    WHEN 'HELP'.
      CASE CURSORFIELD.
        WHEN 'S_MATNR-LOW'.
          CALL FUNCTION 'POPUP_TO_DISPLAY_TEXT' "Make your own Text
            EXPORTING
              TITEL        = 'Information'
              TEXTLINE1    = 'Information for field:'
              TEXTLINE2    = 'S_MATNR-LOW'
              START_COLUMN = 10
              START_ROW    = 15.
        WHEN 'S_MTART-LOW'.
          CALL FUNCTION 'POPUP_TO_DISPLAY_TEXT' "Make your own Text
            EXPORTING
              TITEL        = 'Information'
              TEXTLINE1    = 'Information for field:'
              TEXTLINE2    = 'S_MTART-LOW'
              START_COLUMN = 10
              START_ROW    = 15.
      ENDCASE.
ENDCASE.
INITIALIZATION.
CONCATENATE ICON_INFORMATION 'Help' INTO PB01.
START-OF-SELECTION.
SELECT * FROM MARA WHERE MATNR IN S_MATNR.
    WRITE: / MARA-MATNR.
ENDSELECT.
Hope it helps.
Regards, Dieter

Similar Messages

F4 Help for the selection screen field

Hi Gurus,
I have to display F4 help for a selection screen field. i am using following code:
    CALL FUNCTION 'F4IF_INT_TABLE_VALUE_REQUEST'
         EXPORTING
              retfield        = 'CODE'
              dynpprog        = lw_repid
              dynpnr          = sy-dynnr
              VALUE_ORG       = 'S'
         TABLES
              value_tab       = gi_text
             field_tab       = li_fields_tab
              return_tab      = pi_return_tab
         EXCEPTIONS
              parameter_error = 1
              no_values_found = 2
              OTHERS          = 3.
My internal table gi_emp has two fields CODE & TEXT. When i select 1 particular value, it returns the CODE value in the pi_return_tab table.
But my requirement is i have to capture the corresponding TEXT value for the Returned CODE. Ex: following is the F4 help being displayed: -
001    test
001    test1
but is i select code 001(First Value), i also need to capture it's corresponding Text value. In return table pi_return_tab i have only Code value.
Please help me out.
Note: Based on return code i can't search into the internal table gi_code, because as shown in the example, code has multiple text.

Sachin,
I think this is what you need. The following code will return the key and the text (OR any other columns), if both columns are in the selection screen the selected values (both columns) will also be passed to the corresponding parameters. If you only need the text to be in the return table and not passed to the selection screen then set the parameter for text with NO-DISPLAY option.
REPORT zktest01 .
DATA :
BEGIN OF value_tab OCCURS 0,
    field LIKE e070-trkorr,
    text   LIKE e07t-as4text,
END OF value_tab.
DATA: t_fldtab LIKE dfies OCCURS 0 WITH HEADER LINE,
      t_rettab LIKE ddshretval OCCURS 0 WITH HEADER LINE,
      t_dynmap LIKE dselc OCCURS 0 WITH HEADER LINE.
PARAMETERS : p_field LIKE value_tab-field,
             p_text   LIKE value_tab-text. "NO-DISPLAY.
INITIALIZATION.
t_fldtab-tabname   = 'VALUE_TAB'.
t_fldtab-fieldname = 'FIELD'.
t_fldtab-langu     = 'E'.
t_fldtab-position = 1.
t_fldtab-offset    = 0.
t_fldtab-fieldtext = 'Key'.
t_fldtab-reptext   = 'Key'.
t_fldtab-leng      = 20.
t_fldtab-intlen    = 20.
t_fldtab-outputlen = 20.
t_fldtab-datatype = 'CHAR'.
t_fldtab-inttype   = 'C'.
t_fldtab-headlen   = 20.
t_fldtab-keyflag   = 'X'.
t_fldtab-lowercase = ' '.
APPEND t_fldtab.
t_fldtab-tabname   = 'VALUE_TAB'.
t_fldtab-fieldname = 'TEXT'.
t_fldtab-position = 2.
t_fldtab-offset    = 20.
t_fldtab-fieldtext = 'Text'.
t_fldtab-reptext   = 'Text'.
t_fldtab-leng      = 60.
t_fldtab-intlen    = 60.
t_fldtab-outputlen = 60.
t_fldtab-headlen   = 60.
t_fldtab-keyflag   = ' '.
t_fldtab-lowercase = ' '.
APPEND t_fldtab.
value_tab-field = '101'.
value_tab-text = 'dddd'.
APPEND value_tab.
value_tab-field = '202'.
value_tab-text = 'aaaa'.
APPEND value_tab.
t_dynmap-fldname = 'FIELD'.
t_dynmap-dyfldname = 'P_FIELD'.
APPEND t_dynmap.
t_dynmap-fldname = 'TEXT'.
t_dynmap-dyfldname = 'P_TEXT'.
APPEND t_dynmap.
AT SELECTION-SCREEN ON VALUE-REQUEST FOR p_field.
CALL FUNCTION 'F4IF_INT_TABLE_VALUE_REQUEST'
       EXPORTING
            retfield        = 'FIELD'
            dynpprog        = 'ZKTEST01'
            dynpnr          = '1000'
            dynprofield     = 'P_FIELD'
            value_org       = 'S'
       TABLES
            field_tab       = t_fldtab
            value_tab       = value_tab
            return_tab      = t_rettab
            dynpfld_mapping = t_dynmap
       EXCEPTIONS
            parameter_error = 1
            no_values_found = 2
            OTHERS          = 3.
IF sy-subrc EQ 0.
ENDIF.
START-OF-SELECTION.
Jeffrey Satriadi

How to assign maintenance view to a selection screen field in a program.

Hi Experts,
I have created a custom table. Now, I have a program where there is a selection screen field for example "Load". After entering a value in the selection screen, and press enter, the user must be redirected to the maintenance view of the custom table to modify the specifed record.
Can anyone help me on how to do that?
Thanks a lot for ur precious help.
Regards,
Aksh

Hi,
What is the need to search for a program.
Use transaction SM30 or SE16 to create or maintain entries in the table.
e.g. if the Maintenance view is created on table A, then Goto transaction SM30 or SE16 and give the table name as A and proceed. This will automatically take u to the maintenance view on tha table A.
Regards,
Himanshu

F4 help for the selection screen field designed in screen painter

Hi all,
I have designed selection screen in the screen painter. in that for one of the fields i have to give f4 help. for that i have writter the code in PAI event. in this event i have used the standard Function module for f4 help. but no f4 help is comming for that field. can any body suggest what i have to do.
Thanks & Regards,
Giri.

Hi,
You must use the correct event to meet ur requirement use POV event instead of PAI event.
for more clarification and example program see below the demo program
DEMO_DYNPRO_F4_HELP_DYNPRO
DEMO_DYNPRO_F4_HELP_MODULE
Cheers
fareed

How to link a search help to a selection screen field

Hi All,
I am using field PKWRG from PA0017 table in selection screen. I need F4 help there as in Tcode PA30 . But this field does not have value table or check table. However, it has a search help attached 'TRV_PKWRG' .
But, I donot know how to assign a search help to a selection screen field. Please help.
Regards,
Nibha

Hello,
Fetch all the data which from the table which you want to show in the search help and pass the value to the FM
F4IF_INT_TABLE_VALUE_REQUEST and the selection-screen event must be
at selection-screen on value request parameter or selection option variable.
BCALV_TEST_FULLSCREEN
BCALV_TEST_FULLSCREEN_CALLS
BCALV_TEST_FULLSCREEN_PRINT
BCALV_TEST_FULLSCREEN_STATUS
BCALV_TEST_GRID
BCALV_TEST_GRID_DRAG_DROP
BCALV_TEST_GRID_EDITABLE
BCALV_TEST_GRID_EVENTS
BCALV_TEST_GRID_INDEX
BCALV_TEST_GRID_TOOLBAR
BCALV_TEST_HIERSEQ_LIST
BCALV_TEST_LIST
BCALV_TEST_LIST_PRINT
BCALV_TEST_LIST_STATUS
BCALV_VERIFY_DTYPES_D0100_F01
BCSMENUF01
BDLCOF10
BDLDVI10
BDLTREDF

F4 help in the selection screen from a int table

I collected the datas from the function module. and the internal table is populated.
the internal table contains manny fields.
among these fields i need to take only one field and this field value to be used for F4 help in the selection screen ( not a dynpro)
for example : in the selection screen
I have to select the PO.
based on the user i have filtered the PO. (determined dynamically by using the user name this i have done it)
then i have to assign the PO the selection screen.
which FM will be better to use for this type of scenario and help me out with some example codes particularly for my req
Thanks

Hi ,
use the FM 'F4IF_INT_TABLE_VALUE_REQUEST'
This example is for search help for material type .
AT SELECTION-SCREEN ON VALUE-REQUEST FOR s_mtart-low .
select all material types you want to display in search help into table i_mtart.
PERFORM select_material_type.
PERFORM help_material_type.
*& Form help_material_type
text
--> p1 text
<-- p2 text
FORM help_material_type .
CALL FUNCTION 'F4IF_INT_TABLE_VALUE_REQUEST'
EXPORTING
DDIC_STRUCTURE = ' '
retfield = 'MTART'
PVALKEY = ' '
dynpprog = sy-cprog
dynpnr = sy-dynnr
dynprofield = 'S_MTART-LOW'
STEPL = 0
WINDOW_TITLE =
VALUE = ' '
value_org = 'S'
MULTIPLE_CHOICE = ' '
DISPLAY = ' '
CALLBACK_PROGRAM = ' '
CALLBACK_FORM = ' '
MARK_TAB =
IMPORTING
USER_RESET =
TABLES
value_tab = i_mtart
FIELD_TAB =
RETURN_TAB =
DYNPFLD_MAPPING =
EXCEPTIONS
parameter_error = 1
no_values_found = 2
OTHERS = 3
IF sy-subrc 0.
MESSAGE ID sy-msgid TYPE sy-msgty NUMBER sy-msgno
WITH sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4.
ENDIF.
ENDFORM. " help_material_type
Regards,
Balaji.

How to display the selection screen fields for selected checkboxes

Hi all,
         I have 7 checkboxes, for each check box we have some seletion screen fields.if i select first check box,i want to display first slection screen fields only.
and if we select more than one check box how to display the selection screen fields for selected check boxes,please help me this
Thanks
sriman.

hi,
Try this code
report z_13317_sdn2.
tables : mara, marc, dd03l.
parameters : p_chk1 as checkbox user-command ABC,
             p_chk2 as checkbox user-command PQR,
             p_chk3 as checkbox user-command XYZ.
select-options : s_matnr for mara-matnr modif id A,
                 s_ersda for mara-ersda modif id A,
                 s_werks for marc-werks modif id B,
                 s_lvorm for marc-lvorm modif id B,
                 s_tab for dd03l-tabname modif id C.
data: v_chk1,
      v_chk2,
      v_chk3.
at selection-screen output.
loop at screen.
    if screen-group1 = 'A' or
       screen-group1 = 'B' or
       screen-group1 = 'C'.
        screen-input = 0.
       modify screen.
    endif.
endloop.
loop at screen.
    if v_chk1 = 'X'.
      if screen-group1 = 'A'.
        screen-input = 1.
        modify screen.
      endif.
    endif.
    if v_chk2 = 'X'.
      if screen-group1 = 'B'.
        screen-input = 1.
        modify screen.
      endif.
    endif.
    if v_chk3 = 'X'.
      if screen-group1 = 'C'.
        screen-input = 1.
        modify screen.
      endif.
    endif.
endloop.
at selection-screen.
if sy-ucomm = 'ABC'.
    if v_chk1 = ' '.
      v_chk1 = 'X'.
    else.
      v_chk1 = ' '.
    endif.
endif.
if sy-ucomm = 'PQR'.
    if v_chk2 = ' '.
      v_chk2 = 'X'.
    else.
      v_chk2 = ' '.
    endif.
endif.
if sy-ucomm = 'XYZ'.
    if v_chk3 = ' '.
      v_chk3 = 'X'.
    else.
      v_chk3 = ' '.
    endif.
endif.
Regards,
Sailaja.

How to provide F4 help in a selection screen

Hi..
   How to provide F4 help in a selection screen for a particular field using
CALL FUNCTION 'F4IF_INT_TABLE_VALUE_REQUEST'.
Thanks in Advance.
Regards
Raj Kumar

AT SELECTION SCREEN
at selection-screen on value-request for s_contr-low.
Get contract (low value)
perform get_contract changing s_contr-low.
form get_contract changing p_contr .
types: begin of ty_ycontract,
           ycontract type xchcontract-ycontract,
           lifnr     type xchcontract-lifnr,
           ycontdate type xchcontract-ycontdate,
           ycont_end_dt type xchcontract-ycont_end_dt ,
         end of ty_ycontract.
data: ds_returntab   type ddshretval,
        dt_returntab   type table of ddshretval,
        dl_fieldname     type dfies-fieldname.
data: dt_ycontract type table of ty_ycontract.
select ycontract lifnr ycontdate ycont_end_dt
    from xchcontract
    into table dt_ycontract.
if sy-subrc = 0.
    clear dl_fieldname.
    dl_fieldname = 'YCONTRACT'.
    call function 'F4IF_INT_TABLE_VALUE_REQUEST'
      exporting
        retfield        = dl_fieldname
        value_org       = 'S'
      tables
        value_tab       = dt_ycontract
        return_tab      = dt_returntab
      exceptions
        parameter_error = 1
        no_values_found = 2
        others          = 3.
    if sy-subrc = 0.
      clear ds_returntab.
      read table dt_returntab into ds_returntab index 1.
      if sy-subrc = 0.
        p_contr = ds_returntab-fieldval.
      endif.
    endif.
endif.
endform.

How to make the selection screen field names to apper as in logon language

hai
the selection screen field names should appear
as that of logon language
and before that once i logon with a language
it should pop up the (some)message in the logon language.
For the selection screen filednames to appear as that
of the logon language whether i have to maintain the textelements for all screen fields in all possible languages or i have to write only in english and tell mentioning it to change

In SE38 --> Goto --> Translate.
Choose target language, and start making the translation -;)
Greetings,
Blag.

Want to see the previous file name in the selection screen field

Hi,
I am working with flat file upload. Now my problem is in the selection screen field when i press space bar or backspace i want to see the previous file path which i have taken before. How to do this functionality.
Thanks in advance,
Vijay.

Hi,
Hope the following code will help u.
PARAMETER: in_file type ibipparms-path MEMORY ID FID.
at selection-screen on value-request for in_file.
call function 'KD_GET_FILENAME_ON_F4'
    exporting
      mask      = ',CSV,*.csv,'
    changing
      file_name = in_file.
But here when u give a path and execute and come back or executing it again the previous path will automatically come to the in_file field.
Just check this code.
Thanks.

Can we create serach help for a selection screen field

Can we create serach help for a selection screen field with out creating searchhelp object.
I mean is it possible to create serchelp in the program itself with some specific values i want to give.
E.g say we can define any internal table and fill it with values and using that into selection screen fields
Regards
Mave

AT SELECTION-SCREEN ON VALUE-REQUEST FOR paymeth.
PERFORM PAYMENT_HELP.
FORM PAYMENT_HELP.
DATA: begin of DESCR_TAB occurs 0,
        DESCR LIKE BKPF-BKTXT,
        END OF DESCR_TAB.
DATA: gd_repid like sy-repid.
gd_repid = sy-repid.
DESCR_TAB-DESCR = 'aaaaa'.
append DESCR_TAB.
DESCR_TAB-DESCR = 'bbbbb'.
append DESCR_TAB.
DESCR_TAB-DESCR = 'ccccc'.
append DESCR_TAB.
CALL FUNCTION 'F4IF_INT_TABLE_VALUE_REQUEST'
       EXPORTING
            retfield    = 'DESCR'
            DYNPPROG    = gd_repid
            DYNPNR      = '1000'
            DYNPROFIELD = 'paymeth'
            VALUE_ORG   = 'S'
            DISPLAY     = ' '
       TABLES
            value_tab   = DESCR_TAB.
endform.
Svetlin

How to limit the search help in the selection screen?

Hi All,
I got a selection option in a selection screen,
say SELECT-OPTIONS KSCHL FOR VAKE-KSCHL.
I want to limit the output list of the search help of this field, e.g. 33 entries for a specific application and usage.
What should I do ?
Thz.

Hi,
U can check with these two
... NO-EXTENSION
Effect
The user can only make an entry on one line. Calling the additional "Multiple Selection" screen is not supported and no pushbutton for this appears on the selection screen.
Addition 12
... NO INTERVALS
Effect
The selection option is displayed on the selection screen without a 'to' field. The pushbutton for calling the "Multiple Selection" screen appears immediately after the 'from' field.
This addition thus allows you to generate a simplified display on the selection screen. This is particularly useful if you are not making any range selections for this selection option.
Notes
On the "Multiple Selection" screen, you can also enter ranges for selection options with "NO INTERVALS".
By combining this addition with "NO-EXTENSION", you can restrict the user to entry of a single value for the selection option, but with the possibility of also choosing single value options like 'Greater than' or 'Less than or equal'.
By using the addition " NO INTERVALS" with SELECTION-SCREEN BEGIN OF BLOCK, you can activate the simplified display for all selection options in a block.
The function module SELECT_OPTIONS_RESTRICT allows you to restrict the set of selection options available for a SELECT-OPTION (for example, only single values and patterns, i.e. 'EQ' and 'CP' are allowed). You can also forbid the leading sign 'E' (= 'Exclude from selection'). This means that you can considerably restrict the selections which can be entered on the selection screen.
Just now tried it out to limit the search help u have to use NO-EXTENSION.
Try this simple code.
Tables: mara.
SELECT-OPTIONS: s_matnr FOR MARA-matnr NO-EXTENSION.
Hope this helps.
Kindly reward points and close the thraed if ur problem got solved.
U havent rewarded any points?
Message was edited by: Judith Jessie Selvi

Help in the selection screen

hi folks,
I need help in updating the selection screen, I have declared the 'parameters' object in the selection screen like this.
parameters:
Paygroup type ZPGKIS obligatory.
it has three values '5A', '5B' and '5V'. when I select '5V' from the parameters, I need to display another parameters selection object for 'date' otherwise NO
I tried something like this.....
if Paygroup = '5V'.
parameters: p_date type d.
endif.
It is not working...
How can I correct this??
Thanks in advance
Vinu

hii
you can make that using radio button

REPORT z_selectionscreen .
SELECTION-SCREEN BEGIN OF BLOCK blk.
PARAMETERS : p_rb1 TYPE PAYGROUP RADIOBUTTON GROUP rad1 DEFAULT 'X' USER-COMMAND FC,
 p_rb2 TYPE PAYGROUP RADIOBUTTON GROUP rad1.
SELECTION-SCREEN END OF BLOCK blk.
SELECTION-SCREEN BEGIN OF BLOCK blk_1 WITH FRAME.
PARAMETERS : p_werks1 TYPE werks_d MODIF ID bk1.
SELECTION-SCREEN END OF BLOCK blk_1.
SELECTION-SCREEN BEGIN OF BLOCK blk_2 WITH FRAME.
PARAMETERS : p_werks2 TYPE werks_d MODIF ID bk2,
 p_matnr2 TYPE matnr MODIF ID bk2.
SELECTION-SCREEN END OF BLOCK blk_2.
AT SELECTION-SCREEN OUTPUT.
IF p_rb1 = '5V'.
 LOOP AT SCREEN.
 IF screen-group1 = 'BK1'.
 screen-active = 0.
 MODIFY SCREEN.
 ELSE.
 screen-active = 1.
 MODIFY SCREEN.
 ENDIF.
 ENDLOOP.
ELSE.
 LOOP AT SCREEN.
 IF screen-group1 = 'BK2'.
 screen-active = 0.
 MODIFY SCREEN.
 ELSE.
 screen-active = 1.
 MODIFY SCREEN.
 ENDIF.
 ENDLOOP.
ENDIF.
you can as well check this code
SELECTION-SCREEN BEGIN OF BLOCK B1 WITH FRAME TITLE TEXT-001.
PARAMETERS : P_FILE(25) TYPE C,
 O_FILE(25) TYPE C.
SELECTION-SCREEN END OF BLOCK B1.
*Selection Screen 2
SELECTION-SCREEN BEGIN OF BLOCK B2 WITH FRAME TITLE TEXT-002.
PARAMETERS: CAL_TRA RADIOBUTTON GROUP G1 USER-COMMAND FLAG,
 SESSION RADIOBUTTON GROUP G1 DEFAULT 'X'.
SELECTION-SCREEN END OF BLOCK B2.
*Selection Screen 3
SELECTION-SCREEN BEGIN OF BLOCK B3 WITH FRAME TITLE TEXT-003.
PARAMETERS: MODE DEFAULT 'X' MODIF ID BL1,
 UPDATE DEFAULT 'X' MODIF ID BL1.
SELECTION-SCREEN END OF BLOCK B3.
*Selection Screen 4
SELECTION-SCREEN BEGIN OF BLOCK B4 WITH FRAME TITLE TEXT-003.
PARAMETERS: SES_NAM TYPE APQI-GROUPID MODIF ID BL2,
 KEP_TRAS TYPE C DEFAULT 'X' MODIF ID BL2,
 LOC_DATE TYPE SY-DATUM MODIF ID BL2,
 USER TYPE SY-UNAME DEFAULT SY-UNAME MODIF ID BL2.
SELECTION-SCREEN END OF BLOCK B4.
 At Selection-Screen Output *
AT SELECTION-SCREEN OUTPUT.
IF CAL_TRA = 'X'.
 LOOP AT SCREEN.
 IF SCREEN-GROUP1 = 'BL1'.
 SCREEN-ACTIVE = '1'.
 ENDIF.
 IF SCREEN-GROUP1 = 'BL2'.
 SCREEN-ACTIVE = '0'.
 ENDIF.
 MODIFY SCREEN.
 ENDLOOP.
ENDIF.
IF SESSION = 'X'.
 LOOP AT SCREEN.
 IF SCREEN-GROUP1 = 'BL1'.
 SCREEN-ACTIVE = '0'.
 ENDIF.
 IF SCREEN-GROUP1 = 'BL2'.
 SCREEN-ACTIVE = '1'.
 ENDIF.
 MODIFY SCREEN.
 ENDLOOP.
ENDIF.
Message was edited by: Naresh Kumar
Message was edited by: Naresh Kumar

How to include Navigational attribute in the selection screen

Hello All,
Can any body please tell me how to include a navigational attribute in the selection screen in BEX?

Let´s go step by step.
In your example, you mentioned the characteristic called 0MAT_PLANT. Its navegational attributes are allocated in the same dimension the main characteristic belongs. So 0MRP_CONTRL, as a navegational attr. must be allocated in the same dimension as 0MAT_PLANT.
1) In query designer in Bex (left pane) find the dimension where 0MAT_PLANT is allocated. Find the navegational attr. in the same dimension, 0MRP_CONTRL. Pls verify you are looking to a navegational attribute, activate technical names and the name of the attr must be 0MAT_PLANT__0MRP_CONTRL.
2) Below the attribut (still left pane) you will find a Variable icon (yellow). If you see the "+" symbol, it means that at least one variable exists (standar or not). Open it and check if the variable suits your requeriment to set it in selection screen. If not, create a new one (let me know if you need help with this task).
3) Once you have your variable for the navegational attribute, drag and drop it to the design area (row, column, filter).
4) Verify the order you want this variable to appear from the menu bar: Query properties -> Sequence of Entry Variables.
Hope this helps. Leticia
Edited by: Leticia Laura Locatelli on Oct 1, 2008 10:41 PM

How to put F4 facility in the selection screen using

HI Experts,
i have a query ..
i want to put F4 facility in the selection screen and The F4 help for the order number (chvw-aufnr) on the selection screen should be the same like the F4 help for order number in transaction COOIS.. PLease provide support in this regard.
Its urgent..An early reply will be highly appreciated.
Regards.
Neeraj

See the following ex:
TYPES: BEGIN OF TY_MBLNR,
 MBLNR LIKE MKPF-MBLNR,
 END OF TY_MBLNR.
DATA: IT_MBLNR TYPE STANDARD TABLE OF TY_MBLNR WITH HEADER LINE.
data: it_ret like ddshretval occurs 0 with header line.
At selection-screen on value-request for s_mat-low.
Select MBLNR from mkpf into table it_mblnr.
CALL FUNCTION 'F4IF_INT_TABLE_VALUE_REQUEST'
 EXPORTING
DDIC_STRUCTURE = ' '
 RETFIELD = 'MBLNR'
PVALKEY = ' '
DYNPPROG = ' '
DYNPNR = ' '
DYNPROFIELD = ' '
STEPL = 0
WINDOW_TITLE =
VALUE = ' '
 VALUE_ORG = 'S'
MULTIPLE_CHOICE = ' '
DISPLAY = ' '
CALLBACK_PROGRAM = ' '
CALLBACK_FORM = ' '
MARK_TAB =
IMPORTING
USER_RESET =
 TABLES
 VALUE_TAB = IT_MBLNR
FIELD_TAB =
 RETURN_TAB = IT_RET
DYNPFLD_MAPPING =
EXCEPTIONS
PARAMETER_ERROR = 1
NO_VALUES_FOUND = 2
OTHERS = 3
IF SY-SUBRC <> 0.
MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
 WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
ENDIF.
IF SY-SUBRC = 0.
 read table it_ret index 1.
 move it_ret-fieldval to S_mat-low.
ENDIF.

How to assign F1 help to the selection screen fields

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