The hyper wall format is in the most recent version of the config.txt file available through the CVS at SourceForge, but not in the one the default DC download, as that pre-dates hyper walls.
I'll attach it for everyone's convenience.
About the water...I know.
There's a reason for that in the original mod it was designed for, but for the new application I need to work on that. I'm sure it's obvious by the look, but this whole thing is hand-drawn, no rendering at all, so I've got a bit of work to do to get the water looking better.