How do you pose models?

[Adrian the penguin]

I want to make my map look more lively. Problem is I don't know how to pose models in hammer. I want to pose a engineer sitting in a chair.

 

[Da Spud Lord]

You can't pose models in Hammer, you can only set it to use one of its existing animations. If you wanted a custom pose or animation, you'd have to decompile the model, create a new animation for it consisting of the desired pose, and recompile the model.