Use case: in some folder, select all recently modified read-only files larger than 1 MB.
Currently there a all sorts of ways to do this semi-automatically, but all are hack-ish and a lot of work.
Now Copy has this wonderful new Advanced Options dialog for advanced filtering on attributes, size and date. Wouldn't it be nice to be have that in Select as well?

I would think this to be asked before, but apparently it's not a common need...?