I just tried to find this and could not
It would be great to have some control over the angle and force of the Scene Physics Gravity in timelines Properties.
Also a sticky object effect would be useful. With a how sticky property. i.e super glue, wet paper, treacle.... which determines the force of how something sticks to other objects it interacts with. ( imagine throwing things against gravity.)
Some objects would be more sticky than others
And also timeline controls for how sticky property.