He put action to words and a small panel slid open to one side of the main door.
He stood against a small open panel that had split from the white wall.
They paused before the door, and he saw a small panel in it open.
"The small panel on the right, press two, one, three, and wait a few seconds."
There was a small light panel and sliding door in front of him.
I could tell that it was evening because a small black panel showed.
There is a small panel on the back wall of the medicine cabinet, he had said.
A small panel in the door was pushed aside and showed a face.
On the left are three small panels that represent blood cells.
A small panel on the top allowed access to the simple controls.