Amnesia script help!

[Mudbill]

You might be able to use SetPropActiveAndFade on static objects, but I'm not sure. If not, then yes, you need to create an entity for the wall you want to use. You do that by opening the model editor, go File > Import Mesh, find the model in the static_objects folder, add a box shape around the wall, create that shape into the collision body, go Edit > User Defined Variables and set the type to Object, subtype Static. Doing so will allow you to use the SetEntityActive script on the wall itself.

After that, just save that entity in the entities folder (preferrably inside your own custom subfolder), and use it from the level editor.

I've actually got a video on just this if you need a more detailed explanation.