you can train them for spots to go... I don't know how, personally lol. I'd like to!! 2 of my gals, won't pee ON you, but stick their bum over the edge to pee. (ew.) Honey'll bite to say "I gotta pee!! lemme down!!!" However, they do not tend to pee where they sleep (in a hut) unless they do not feel comfy being out of the hut.
Breed for the breed, not for the money; the words any REAL breeder would understand.
You must know nothing in order to know all, for all is nothing and nothing is for all.