Its ASM work but I don't know exactly how.
Edit
You need to modify ZRoomListBox::OnDraw.
The ROOMLIST name is Lobby_StageList (default.mrs > lobby.xml).
Looks a bit messed up =o
I prefer the original.
To my knowladge you don't need to do any ASM work. Try lowering the width of the listbox. it has a default width of 640x320 if I remember correctly. Make it smaller to the width of the box, it should automatically append to the next line.
To my knowladge you don't need to do any ASM work. Try lowering the width of the listbox. it has a default width of 640x320 if I remember correctly. Make it smaller to the width of the box, it should automatically append to the next line.