I was not able to emediatly find a guide on how this operates so, i figured i would post this. (Very WIPish)
This is a quick guide on how to use the foliage painter that is currently used, as it has a couple added settings. Currently this is somewhere around the bare minimum to get it working. (This assumes that you have a basic knowledge of the software)
First open the foliage module, and select Paint. Once paint is selected, find your static mesh and drag it into the field.
Once the static mesh has loaded, the current settings require a shared asset or “SM_Settings” asset to be added with the foliage.
Do this by locating the model’s SM_Settings and adding it to the"useInstancedFoliageSettings"
After doing this, you should be able to paint the foliage onto the terrain.