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Tags: FALV
The latest version of each part of FALV can be found on github repository https://github.com/fidley/falv which you can use in abapGit for easier up to date handling. 
 
I've built in the mass replace function for FALV so now you don't have to import separatelly from  http://abapblog.com/articles/tips/72-mass-replace-popup-for-alv-grid.
 

"! This is demo for FALV with mass replace function
"! done by Lukasz Pegiel for http://abapblog.com
report zdemo_falv08.

datasflight type standard table of sflight.


start-of-selection.


  select up to 100 rows
  into corresponding fields of table @sflight
  from sflight.

  "FALV creation with only table passed
  data(falvzcl_falv=>createchanging ct_table sflight ).

  "Add title variable
  falv->title_v1 'ZDEMO_FALV08'.

  "set whole grid editable
  falv->layout->set_editabap_true ).
  falv->set_editableiv_modify abap_true ).

  "show default grid toolbar
  falv->layout->set_no_toolbarabap_false ).

  "Add mass replace function to grid toolbar (can be also added to GUI STATUS as well )
  falv->add_button(
    exporting
      iv_function  falv->fc_mass_replace
       iv_icon      icon_replace
*      iv_quickinfo =
*      iv_butn_type =
*      iv_disabled  =
       iv_text      'Mass replace'
*      iv_checked   =
  ).

  "Display full screen grid
  falv->display).

Video with demo result