This is an ordinary page. The panel below is a NEXUSVIEW mounted into a
460px <div> — the exact same engine that runs fullscreen, just
scoped to a box. Hover it to fly (right-mouse forward, WASD, scroll); move off it
and the page scrolls normally. Drop as many boxes on a page as you like.
Because the placement API (addItem) is the same call the brain will
use, whatever fills the fullscreen Nexus can fill an embedded box too — a thumbnail
of a thought, a graph on a dashboard, a spinning object in a product page.