In general, more than 1 male pr. cage doesn't work well, if there are females around. There are exceptions to this rule, but I wouldn't recommend trying it.
Buttons are supposedly monogamous, so you should have just 1 male with 1 female, though I have 1 male with 3 females and most of the time that seems to work just fine. If you hatch chicks, it is likely you still won't have at least 1 female pr. male you end up with, so you will probably have excess males you need to get rid of somehow(or just have the excess males live together without females - I have 4 10 weeks old males living together right now, so far there have been no real problems). Also, you probably shouldn't introduce a very young female to a grown male - I would wait till the female is at least 3 months old. My suggestion would be to just buy a grown female for him - if 'he' really is a male. You can post a few pictures if you need help determining - though if he is white, a description of his behavior would probably do more good