402692 GetResponse API programming

I'm looking for a person experienced with using the Get Response API system to put together a script that adds subscribers to multiple campaigns. I want people to be able to add themselves to multiple campaigns while only having to click one confirmation link. Currently, I have set it up when people add themselves to multiple lists, they have to click on a link for each one - when I have 6+ courses available and somebody signs up for all of them, I know all links aren't getting clicked.