Hello, to get a single block of Water, you can use World Edit, to do this, you need to type //wand or simple get a wooden axe. Then you can type //set 8:1-7 or simply //set 8. IF you would like to create a sphere of it, then type //brsphere 8 (1-5), if you want to or if you would like to replace a block, then type //replace (block) 8. An example would be, //replace grass_block 8