Assembly Tool by Andrew Averkin is a series of scripts all condensed in one single place. Its totally free
There are hundreds of utilities build to make your work faster, more efficient and more productive. It helps optimizing different areas of 3dsmax workflow, accelerate performance of your work in 3dsmax and make it easier and more fun.
Assembly Tool contains a huge number of tools for: smart transformation and manipulation of objects, faster scene assembling, modeling and unwrapping, work with textures and materials, batch renaming of objects and materials, work with layers, groups, pivot points, scene management, objects painting, scattering, array, randomization, optimization, physics – all this is only a small part of the Assembly Tool functionality.
Check the video to see of this tools in action: