rfScene
This is the name of the RealFlow "Scene" object. By default the name is "SceneShape".
Simulate
Press this button to start the RealFlow simulation. The simulation will be displayed in the viewport, but not → cached.
Stop Simulation
To stop and interrupt the simulation press this button. As long as you do not change the current frame it is possible to resume with "Simulate".
Reset
Reset the current simulation. If the simulation has not been → cached all data will be lost.