Reordering sibling boxes

Siblings are boxes that share the same parent box. Swapping them around is a simple matter of drag-and-drop.

Take this example:


To relocate the Challenge after the Pro and Con, just click on it, hold and drag it until you see the red vertical indicator line to the right of the Con box, and then release:

If the box you're moving has child boxes, the entire branch will be moved together, as in this example: