Thanks for the input.
Yes, I know about the painting options. In my water world, no preset or generated terrain, the only ground is the bottom of the ocean floor. When you try to add or remove terrain from this, it only paints the floor whatever color the terrain type you have selected is.
I did try shutting the water off in view, but I still cant add or remove terrain to the ocean floor.
Lol, Ok, i was able to stamp in some terrain, then use add/remove to edit it. This will work!
Thanks for the help though!