Houdini HDA Landscape Grass density

Hello,

I am using an HDA to get a Lndscape from Houdini into UE4.

When using the “LandscapeGrassType”, the Limit of density is 1000.
Anyway, when scattering grass, I have lots of holes.

The landscape in Houdini has the default size (1000 units)

I read, I can override the Limit in “LandscapeGrassType.h” - but where can I find that file?
Or is there a better way to fill the landscape with dense grass?

I dont need the final result for real time, so its okay when I have not the best performance because of higher density.

Thanks alot.

I found the LandscapeGrassType.h under C:\Program Files\Epic Games\UE_4.25\Engine\Source\Runtime\Landscape\Classes

But when changing the default value from 1000 to something else, I still cannot override the density in the UI.

Is there something else I have to do?

Found the solution:

Adding a “HF Tile Split” gives super dense grass.