You should hide the other layers- where there is a black dot next to each layer, click it and it should go invisible, meaning you've hidden the layer. That way, you'll be able to hide the adults and 2nd form easier. I have them listed, so you just have to hide the ones relating to the two stages you aren't using. n_n
I'm not really an active trader. I use my spare pets to order art and whatnot. ^^