Starter Kits

Source Engine level design starter kits will automate some entity setups for common level design tasks.
Visgroup Manager

The Visgroup Manager in Wall Worm allows you to arbitrarily show/hide objects in your scene.
Entities are Missing in Exported Scene
Solutions on missing entities in exported game level
Information on why some entities might not export into the game and how to fix that.
Help! There was an Error and Now Max is Frozen
If there is a MAXScript error during some functions, the MAX UI can remain in limbo (frozen or non-responsive). Here is the function to fix this.
Prop Libraries
Creating Prop Libraries for re-using assets in Wall Worm Projects.
Hitboxes and Bone Properties
The bone tools allow you to give specific bones artbitrary surface properties, set mass bias and create hitboxes and hitbox groups.
WWMT Proxy Tools
Wall Worm Proxies are objects that let you re-use a model in a scene that you are exporting into a VMF.
Collision Hulls in 3ds Max for Source
Using WWMT in 3ds Max to create your model's collision hull with the Quick Hull feature.
Prop Data & Gibs Rollout
This rollout lets you assign prop_data values to your prop so that it can be used as a prop_physics in Source. YOu can also assign custom Gibs models with this rollout.