iMovie titles line spacing Is it possible to adjust the line spacing on title screens (specifially: scrolling credits) in iMovie 10?

I can find some references on how to do it in previous versions of iMovie (see e.g. font panel here) but I can't seem to find the right setting in iMovie 10.  The fonts window doesn't show the spacing control, even when resized.
I found that I could put the text into another editing application (I used TextEdit) and adjust the line spacing there and it remained when I pasted into the title. Presto magic-o!