Toggles the display of water levels
on or off
The Water Display level and increments can also be edited in 3D View Properties
Incrementally decreases the displayed
Incrementally increases the displayed
Pressing the Ctrl+Shift+W key will enable or disable Water Level display in the 3D view window.
When water level is displayed, the number pad '+' key will raise the water level, and the number pad '-' key will lower it.
Rolling the mouse wheel with the Alt key down will raise or lower the water level.
In all cases, the amount used to raise or lower the water level is the water level increment value that appears in the 3D View Properties dialog, but that can be modified: if the Shift key is also held down, the water level increment value used will be multiplied by 4; conversely, if the Ctrl key is also held down, then the water level increment value used will be divided by 4.