300 views and no answers for the first steps with WED? Hmm. It's the same with A7 and A8: Create an empty level, create the main script in Map properties, add more scripts with the Project Manager, and then you can select the behavior of players and enemies with the Behavior scrollbox.

You can see in the manual under "Templates" what standard behaviors are available and how to set them up.

Most users write their own scripts and are not using the standard templates, that's probably why you got no answers.