The step that fails is the Import I did all exactly as u listed on the raw file saving format , I have edited then resaved in 16bit raw , opened the file imposing the correct numbers , the top 90 the left -180 , the lsb etc ... loaded up and then I get not correct map .

btw is there a way to paint in a single height level ? Like brushing 1 pixel wide for a whole lenght and have it always put the land to -1 m for example? thinking of this to draw precise coast or river flat .

Or is there a carving in that I can use to create as loped path for rivers? I can toing this manually but its hard to make the find rivers find exactly the sloped trail drawed .