err...

+- works for left/right but it wouldn't work up/down? (rhetorical)

From the answers that precede I take it a feature request would be in order to have another pair of buttons to extend the selection up/down using the Article clipping option.

The default selection for clipping an article starts at the top and stops somewhere below, sometimes not to the end. That often happens with forum discussions, only the first post is selected (example). The +- buttons expand the selection right/left, not down up. So, is there an existing solution, or should it be a feature request?