Separate Rocks and Trees for destruction planner

[nljr]

It's really tedious to create a destruction planner for all the different rock types, so it's awesome to have the option to just check a box and say "All the rocks and trees and nothing else."

But sometimes I want to keep the trees. And sometimes I want to deconstruct the rocks, trees AND cliffs.

It would be great if rocks and trees had separate checkboxes that could be combined with other entities.