LC drop down searching so I don't have to know and enter LC classifications.

I want to be able to see a list of LC classes, click KF to open Law of the United States, scan down the list and click KF2971-3193 to open Intellectual Property Law, etc. Once I've narrowed down my LC class, I should be able to specify that I want to see books for the last 3 months, print books, basic essential & basic research, then have GOBI display books that meet my criteria. This would benefit selectors who are not familiar with LC classes, selectors who are putting together consideration lists, and selectors who just took on responsibility for an area where nothing has been purchased in several months.