Well I've searched the forums and I didn't find a plugin like this one. Basically by type a simple command like /waterremove on or something like that it removes all the water in the world, saves their coordinates, and stores them in a database or a file. Sounds pretty simple enough if you have any question just ask P.S. I'm requesting this plugin because the seed I use has too much water and I wanted to build an underwater city so if someone makes this it would really help a lot. The seed I'm using is HDTV
Well it would be a good idea too add in a selection area that's cuboid, but goes from sky to bedrock so you don't have to dig down to get the right region selection
if you use world edit you can type //drain <radius> , be careful though, depending on your hardware, if you try to remove over 10k blocks you might get some laggage to remove all the water in a world at once would be impossible I bet, especially in a large server your best bet would be to get a plugin the generates worlds without water
