PLEASE READ THIS FIRST
UV Puppy is an absolutely free tool for 3ds Max. But if you'd like to support Utopia Syndrome game, you can donate.
UV Puppy - is a set of "quick to use" buttons and different functions, mostly created for a batch work with UVs. With this script, you can easily create a second UV channel for a large number of objects to bake lighting in your favorite 3d software or game engines, such as Unity or Unreal Engine 4. You can easily unwrap a group of objects with quick flatten mapping, attach and pack objects by material just in few clicks. There are many other useful functions that could help you to speed up your work, please check the list under the video description or at Gumroad.