Hi, thanks for all your replies. Indeed sorting the search result columns appears to be a Premium only tool. I'm hoping someone will upgrade me for my birthday
Thanks J Grouchy for putting in that bit of work for me! I will definitely have a lookfor some of those.
If anyone else is wondering, the IPhone app lets you do an advanced search where you can move some sliders for D and T.
I love the idea of climbing some trees!