I was wondering if i can use some sort of spherical effector or collider to push my RBD object with falloff, i am trying to use some RBD fieldforce but not sure where i can set the falloff, so it effects not right away but with falloff distance!

Getting that to work was tricky .. I changed the length of the little pre-vis vectors so I could see them according to how much end distance there was and not how strong they were. Strength is much easier to adjust than distance I think. I thought it was really good to use to keep objects from passing through the floor.