It is very useful during refactoring to move lines around. All popular IDEs or text editors have this feature (PyCharm, Vim, Sublime, etc..) for example in Xcode you press: ⌥⌘[ or ⌥⌘] to move lines up and down.
Question: Is there a shortcut for reordering cells like this, i.e. moving the cell your cursor is in up one cell or down one cell? Effectively, this would be the same as cutting the current cell and pasting before the previous cell or after the next one.