Moving text lines up or down?

[jason-mehmel]

One feature in plain-text editing that I've come to rely on from Sublime Text and Geany has been moving lines of text up or down.

Whether I'm shifting things around in a list, or trying out different configurations of a larger body of text, it's become second nature to me!

I would love to have this feature and map it to keyboard shortcuts, either of our choice, or following a trend of similar shortcuts from other text editors!

(It's also possible this exists and I just haven't found the settings yet.)