"Slate out!" He just propped it up within arm's reach, no problem.

"I'll stay here just in case, then. If there's trouble, gimme a holler," he answered Sephiroth in kind, focused on maneuvering the hooks and working to visualize the place in the reversed position.

All the while he looked for something to indicate there would be screens for the different floors, so that he may switch controls to each in kind. Maybe Sephiroth was onto something.