Missing AoM items

So I finally got AoM the other day and was looking forward to the new stuff. Only it doesn’t show in Asset Manager.

Tried renaming working dir and reinstalled files. Didn’t help.

Someone recommended I unpack from gdx1, but didn’t say how.

So how do I get all the AoM items where they belong?

This was d/ld from GOG w/o using GOG galaxy. In case that’s important.