I'm a P4 user. I'm not sure that you can make it wider unless there's a setting for it in pref's. What I try to do with my library is rename the folders so they're shorter. The only problem is that you can't rename geom folders or texture folders but the rest you should be able to without messing it up. I seem to be able to read the folder name if they're long, what happens? Are they getting cut off?