I don't have the need to allow for new accounts for existing affiliates. I do however like the feature of existing affiliates creating additional tracking links. Additional tracking links allow the affiliate to track the sources of traffic and conversions, i.e., one tracking link for their website, one for facebook page, one for newsletter, and so on. One account, no changes to email, city, state, etc.. only multiple tracking links.

Is there a modification that is relatively easy to make this happen? Without modification, it's clunky and can be confusing.