Terrain foliage scaling and desity

[Mille25]

hello!

at the moment im experimentating a bit with unit scaling to simulate big maps.
it runs quite good, but now the terrain foliage is to big. is there a way to scale it down and change density? i think i found it in data editor, but changing it didnt seem to have any effect. has anyone tried this already and has some experience?

i just want that the foliage doodads are smaller and closer together.