Help:Surveyor Topology Advanced Displacement Map Apply
From TrainzOnline
Fill area (F)
Scroll through the Displacement Maps, then click on Fill Area (F). The terrain is instantly transformed into the shape determined by the grayscale images of the displacement map chosen.
TRS2019 Effects Layers (Clutter and TurfFX)
When clutter effect is selected, the Fill Area tool will allow you to fill the selected area with the selected effect.
See Effect Layers for further information on creating, using, and editing Effect Layers.
