Liaison EMP

We have been hoping to do some follow-up communication with students who have clicked links for a visit event we are hosting, but I am having a very challenging time locating and gathering those students. I have made a group, but with the limit to five interaction criteria I can't do very much (there are four emails in our sequence, with at least one link per email...). I've also looked at the email stats and delivery reports, which I can sort by who opened the emails but can't get those who clicked links nor create groups/exports based on these lists. Any help? I'd like to get all students who clicked links in an email track.