Hi, my kit seems to be missing this tiny part that goes on top of the internal structure (see picture below, from the 2.6 guide).
I've emailed email@example.com but they haven't responded yet; I'm hoping they will soon.
But in the mean-time, does anyone know how important this part really is? It's very small... I have some old plexiglass lying around that I might be able to fashion into something close to that shape if necessary.