So it looks like earth is in the "C" slot. Why is it that when I type "C", a text field appears and starts filtering out elements by name?

After seeing this happen, I tried typing out the whole word "earth" and hitting enter. Nothing. I tried typing "?" for help. Still nothing... "/" opens a find search box. By opening that and typing "fire", and then hitting escape, I've got fire hilighted. So I hit enter... nothing. I hit space... now the useless text field is there.

Not a fan of this game's onboarding!