This is a global daemon acting with equal strength at any point of the 3D space.
RealFlow Scene
In RealFlow | Cinema 4D it is possible to use multiple "Scene" trees in the same project. To link a daemon to a different scene tree drag the appropriate "Scene" node to this field.
...
Links
All fluid, rigid, and elastic containers inside the drag-and-drop field will be affected by the daemon. If there is only one container in the scene it will be linked automatically. Otherwise the connection has to be established manually.
...
This option is only available with "Bounded" set to "Box" or "Plane"a falloff. When active the force will act outside the viewport gizmo.