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About
Kopernicus is a KSP add-on that allows for modification of stock planets and the creation of new planets via modification of the system prefab. Why is this advantageous you might ask? Previous planet adder mods, such as Planet Factory, modified the live planetary system and had to keep multiple hacks actively running to provide these worlds. We strive to provide the least hacky solution by introducing planets into the game in the exact same manner Squad would.
It depends on what your goal is. Kopernicus can scatter static, collidable objects around the surface. Apparently with Science, too.
To my knowledge, the only interactable, animated surface features come with the BG DLC and rely on "prefab" assets. You can, however, redistribute and rename these. Look in SquadExpansion/Serenity/Resources/rocsdef.cfg for their definitions. Have some trees on Minmus: