Default Elevation settings

[popeye]

Is there a way to create new water bodies by adjusting the altitude offset?

Applying a negative value to altitude_offset reduces altitudes, but seems to set the minimum to 1 foot.  Is there a way to let the altitude go below "sea level" so new water bodies would be created instead of 1 foot plains?

[JimmyD3]

If I understand the limitations correctly, there is no way. iirc the DEM data does not include the submarine profile. Sorry not much help there I suppose. I would keep experimenting and see what you can come up with.