The MiniList feature is coming with the 1.0.1-release probably either tomorrow or Saturday.
Yeah, I apologize for this. There isn't a native Item ID -> Species ID API available in the WoW API that I'm aware of, so those associations need to be handled manually. If someone has a way that they harvest this information that they would like to share, that would be awesome. In the mean time, you can uncheck "Companion Pets" as none of them filter correctly right now. I kinda left that in as a placeholder for something I want to do some day.