Although you may use any dummy from the L1 Force category of the Physics Toolbox to pick and control other physics rigid bodies, the connection is not unbreakable. After you designate the connection to be breakable, the structure will scatter as soon as it encounters external forces.
The Motors of the L1 Force category of the Physics Toolbox contains motors that can be used as wheels, which drive movement in a custom structure. However, by using the controls in the Sliders category, you can also convert linear movement into rotational power.
