VMF Importer
You can use Wall Worm to import a VMF into 3ds Max. This allows you to bring in your Hammer project into 3ds Max.
Using Props in Your Scene
Article on re-using existing props in a scene.
Archive of Wall Worm Version 1 Changelog
Archive of Changelog 2011-2014
Archive of Wall Worm Version 1.X changelog in 2011 through 2014.
Global Settings and Configuration
This floater controls global settings for Wall Worm. The settings control some system settings as well as default settings for common tools and actions in Wall Worm.
Export Multiple Texture Skins
You can give your model multiple skins (textures) so that the same mesh can look differently in different uses.
Exporting Correct Smoothing on Models
Understanding Smoothing Groups and Explicit Normals
Discussion on smoothing groups and explicit normals and how they relate to Source.
Setting Up Wall Worm for Goldsource
Overview of setting up Wall Worm for Goldsrc.