Newtonian Follower allows you to link one object to another via Newtonian physics, (that stuff you forgot about from high school.) Basically, it's like a yo-yo, or a spring, or planetary motion...
Newtonian Follower is an item animation plugin for Lightwave. It's accessed from the motion panel.
The interface looks like this.
In addition to a "follow" object, you can set control objects for stiffness, gravity, and on/off.
The on/off control is provided so you can temporarily turn the plugin off to save processor cycles, as the plugin is calculation intensive when you are working with a lot of frames.