//Level1.cpp changes:
//Add:
bool ChatHandler::HandleAdminCommand(const char* args, WorldSession* m_session)
{
    HandleGMOffCommand(args, m_session);

    Player* _player = m_session->GetPlayer();

    if(_player->HasFlag(PLAYER_FLAGS, PLAYER_FLAG_ADMIN))
        _player->RemoveFlag(PLAYER_FLAGS, PLAYER_FLAG_ADMIN);
    else
        _player->SetFlag(PLAYER_FLAGS, PLAYER_FLAG_ADMIN);

    GreenSystemMessage(m_session, "Admin flag toggled.");

    return true;
}

//Chat.h
//Add this to the line after the space and dev tag line:

bool HandleAdminCommand(const char* args, WorldSession* m_session);

//Chat.cpp
//Add this to ChatCommand adminCommandTable:

{ "on",               'z', &ChatHandler::HandleAdminCommand, "Turns on/off admin tag.",                       NULL, 0, 0, 0 },