.Change word at once for all file in the directory.

    Use EXE cmd on dir-list.
      e.g.) File execmdf contains following 3 lines.
                       s "%3"
                       c %1 %2  all
                       end
      Enter  "exe ! execmdf FROM TO <s *.c" on dir-list panel.
      EXE cmd executes Select/Change/End to all *.c file in this directory.

    Or "%" line cmd not so easy way.