Reg. copying Layout Variants from 1 ALV pgm to another

Question

Hi Friends,
I am currently copying an ALV program Ztest1 to ztest2 through ztest5. While doing so I want the LAYOUT variants that are available for ztest1 also to be copied to these other programs.
All I am aware is that the table LTDX stores all the layout variants for a particular program.
Could anybody provide me the right inputs on this.
Thanks in Advance.
Rgrds,
Gayathri N.

Answer 1

I took this approach and it worked for me:
1) Change your program so that everytime an ALV function is called it is using the original program name in the variant declaration, ensure you keep the original code commented out, you will need to put it back later.  Examples:
  FORM variant_init USING varname TYPE slis_vari.
    CLEAR g_variant.
   g_variant-report = g_repid.
    g_variant-report = 'ORIGINAL_PROGRAM_NAME'.
  FORM f4_for_variant.
   g_variant-report = sy-repid.
    g_variant-report = ‘ORIGINAL_PROGRAM_NAME’.
    CALL FUNCTION 'REUSE_ALV_VARIANT_F4'
  FORM check_variant.
    IF NOT p_vari IS INITIAL.
     g_variant-report  = sy-repid.
      g_variant-report  = ‘ORIGINAL_PROGRAM_NAME’.
      g_variant-variant = p_vari.
      CALL FUNCTION 'REUSE_ALV_VARIANT_EXISTENCE'
2) Display function lt_variant_save via SE37, set a breakpoint at the first executable line:
     perform variant_save tables it_fieldcat
4) Run your program with the layout variant you wish to copy.
5) Hit Save Variant.  You are now in debug mode.
6) Enter variable CS_VARIANT-REPORT in the variables 1 panel.
7) Double-click on CS_VARIANT-REPORT.
8) Hit the Change Field Content button
9) Change the value to the name of your new program, then hit Enter.
10) Hit Execute (F8).  You have now saved the variant under your new program name. 
11) Exit and rerun your program as necessary for as many variants as you want to copy
12) Change your program back to using sy-repid (or whatever else it was referencing) wherever you changed it in step 1.
13) The variants have now been copied and you can run your program with the new variants.