My suggestion is instead of having a check mark in the dynamic difficulty search results, is to have the # of levels instead.

 

I find that for the single level difficulty songs, if it is my first time playing it and I do not max everything, it will level me down on in general.  I know I can adjust manually in riff repeater, but it can be difficult to decide which was the optimal one I was at before.

 

Plus having the # of difficulty levels may encourage people to add more.

We're not going to add any more features to Search 2 as we're working on its successor, but we're going to try and add this feature to the new release. 

Thanks for responding! I hope the next search engine doesn't become too difficult to program! :)