Try the “even newer version” – it will now attempt a numeric sort if every instance of the sort property contains an integer, and fall back on string sort otherwise. The use case of having the property contain an integer value in every case but nonetheless wanting a string sort seems so rare that I don’t think it’s worth adding a checkbox – someone who really wants that for some reason can work around by putting an “x” at the end of all of their strings, or whatever.
Brian