I think they are talking about how to use different trees and how to get them into Openzone like these.
All of which can be found by searching and asking questions, I had to search long and hard and get some advice from others before I could get them to work (thanks Scorp) and no matter how many models I give them they will not know how to use Openzone correctly without really wanting to and putting the effort forward like I had to. I dont know what exactly this person wants from me but I am happy to give zones I make away and honestly a little upset at them saying "If I REALLY wanted to give stuff away" well i had went through alot of work to give away what i did and now I suggest that if you want more then I have given then get off your butt and LEARN like I had too....thanks