Just press the flag! To see your cat's siblings, press space. Yes, you might get an Eggfish or an Oddpaw, but you can always press the green flag until you get a cat you like. In the comments below, you can ask me, lets say, you have a cat in mind that's white with bright blue eyes and 2 kits. I'll tell you some names I think would fit in the description of the cat. Note: You have to fill in what your cat looks like in details, what rank the cat is, the gender, and if the cat has an apprentice or a kit. If you don't give me enough details, I'll tell you so.
WARNING: Unless you've read a book in the Warriors series by Erin Hunter, you'll have ABSOLUTELY NO IDEA what it's about! OMG I GOT CINDERPAW AS SLATESPRING'S APPRENTICE!!!