Within the node REPL, an multi-line editor mode can be entered by using the command:
.editor
Well, I can paste multiple lines from the clipboard and execute them. However it doesn't really let me to edit any code apart from the last line. The cursor can be moved on that line with the right and left arrow keys, but there doesn't seem to be any ability to move up and down lines to edit them.
Within the NodeJS REPL, how can the cursor be moved vertically?