I'm not sure if I'm simply unable to find the page where those questions are answered, but they aren't in the rules and faq where I'd normally look, so...
Is it allowed to app more than one character from the same canon?
If you allow app challenges anyway, what are reserves there for?
If my character does not fall into the gender binary, can they a) still be apped b)be apped into roles that are described as "male" or "female"?