Labels will wrap text that is too wide for them–at least in 8.1.7:
Some padding on the right prevents text from flowing into the arrowhead (clipping-path). This doesn’t give you any control over where the line breaks are, except by adjusting label width, but may be suitable for some uses.
Kind of a zombie thread at this point, but since it has already been exhumed I figure that I may as well add to it. As long as you edit your label’s text property through the popup editor that appears when the content is too long for the property editor toolbar and add your line breaks there:
You can create a “white-space” style property on the label, which will allow the line breaks to display when it is set to “pre”:
Search exhumed it so I figured why not resurrect it with some helpful info . Thanks for adding the white-space style detail. I could swear I tried that before posting and that didn’t work, but it works now.