Thank you once again for answering Sarah 
I already tried that node, but sadly that node returns empty for me.
I have both tried to get the landscape with Get Actor of Class and with a Line trace, but both say that there are no layers. However, when I type “Layer” in the EditorApplySpline EditLayerNames I get the layers.
With get actor of clas:
With the linetrace:
The Edit Layers:
