Toggle gravity on or off in the Simulation workspace
Gravity is turned off by default for a new structural simulation study. In Simulation workspace, Setup tab, Load menu, the following command appears when gravity is disabled:
Toggle Gravity On 
Click this command to turn on the gravity load.
Conversely, if gravity is currently enabled, the following command appears in the Simulation workspace, Setup tab, Load menu:
Toggle Gravity Off 
Click this command to turn off the gravity load.
Note: When you apply a Hydrostatic Pressure load to any face of the model, the program automatically activates gravity. The direction of gravity controls the direction of increasing pressure for this type of load.