add: SetMenuSounds (MENU_SOUND_ARROWS, MENU_SOUND_SELECT);
context: Cargo (PMENU_STATE pMS){	pMS->InputFunc = DoDiscardCargo;	--pMS->Initialized;	pMS->CurState = 1;	LockMutex (GraphicsLock);	DrawStatusMessage ((UNICODE *)~0);	UnlockMutex (GraphicsLock);	DoInput ((PVOID)pMS, TRUE);	pMS->InputFunc = DoFlagshipCommands;	pMS->CurState = CARGO + 1;}