The previous post shows you how you can configure the outgoing ip in antinat but if you have multiple ips and you want to use all of them and you want to be able to control which one to be used for certain things that patch doesn't do enough for you.
Antinat should bind the ougoing connection on the same ip on which it receives the connection from the client.
So if you want to use a different ip just set your configure your socks settings in the browser or proxifier to the ip you want antinat to use.
And here's the patch to let you do that ...
This patch is incompatible with the one on the previous post, you can either have that one or this one so make sure you apply it on the original antinat source.
Questions or suggestions are welcome as always ...