In the AnimDynamics Details panel, you can enable planer limits with the Use Planer Limits property. Then, using Add (+) to create an Index, you can set individual planer limits to control the simulated structure's behavior. With each index, you can set a Driving Bone as a reference point for the location of the planer limit. Then, using the Plane Transform properties, you can set the planer limit's Location, Rotation, and Scale properties to establish planer boundaries that the simulated structure is unable to cross.