Yes, I'm on a later test version, but as Yossam says, it's nothing to worry about. If you save and reopen, it'll be gone.
And a more comprehensive answer to your first query, and everybody who doubts; It's a complete tgd, so all is there except the plants. I did put in a grass clump so you can see where to put it, though most of you won't have any trouble with that. The now 4 'surf waves' can easily be extended with more, as many as you want, their look can be changed by a few mouseclicks, and the beach runs for miles and miles. Hinterland can easily be added, as the area is masked.
The only thing this setup can't be used for is an existing terrain. Well, it can (the terrain you see in the distance is on a separate line of nodes, and can be changed any way you like), but the waves and coastline won't adapt to existing bending coastlines. That is a bit harder to accomplish, but might be my next challenge.
Any questions; shoot.
