I thought you were talking about the lecture theaters where there were 6-8 giant boards arranged on the wall with pulley systems so the lecturer can raise/lower them and access them independently, kind of like in [0]. Some of the setups are have enough writable area that it's not even really practical to fill them all up in a 2-hour lecture period. Using the available space in a smart way is definitely a learned skill; it's far too easy to start in the "wrong" place and end up needing to write "board via"s / "goto"s.

Do companies still do whiteboard interviews anymore for engineers? Whiteboard management in that context was also a learnable skill, though easier than managing multiple movable boards.

[0] https://www.quora.com/Why-do-awesome-schools-like-MIT-UCs-an...