Graas and tree defining problem

hi all
Is there anyway to define grass and trees as a surface in dragonfly (not albedo or latent) like dragonfly legacy?
Thnx

What type of calculation are you trying to run? Is it an urban heat island simulation with the UWG?

yes . dragonfly legacy had trees and grass option and i could define it but in this version the only option i found is " vegetation parameters".