Is it possible to deform a procedural mesh landscape with water system ?

Hello guys ! i have created a procedural landscape following theses videos : https://www.youtube.com/playlist?list=PLNTm9yU0zou6B6eqrPrRjODBd2OD-BVsh

But now i search to create a lake and some rivers connected to it. problem is : when i spawn a water body into my terrain it doesn’t deform anything. any ideas on how to do something ? thanks in advance !

Hi, Sir_Feltos You need to activate the “enable edit layers” option in the landscape.