copy paste lobby.unr -> rename to lobby01.unr, copy paste strings from logongrp.dat to gracia logongrp.dat done.
FIle list:
Lobby.unr (maps folder)
l2_lobby.usx (staticmeshes folder)
L2_Lobby_T.utx (textures folder)
Lobby_terrain_t.utx (textures folder)
lobby music in ALAUDIO.INT in section:
[LobbySound]
LogInSound=LS01_F (.ogg music from music folder)
@VegaBoy