(1) I haven't tried in the new editor yet, because I've only used it for syncing
Apologies, Safetex: when I replied yesterday, I hadn't seen CC's What happened to all the LINE BREAKS within subtitles? They're all gone now. Does it have to do with the upgrade? topic - nor noticed the issue with (re)introducing line breaks in existing subs s/he describes. Can we perhaps move further discussion of this present line break issues to CC's topic?
That was a great revert: in fact, this software-imposed 32-char, 4-line display had been retroactively mangling heaps of previously made subtitles.
Now Amara developers have gone one step further: they have finally enabled line breaks, which enable subtitlers to create real multi-line subtitles, which they - and not a software ukase - can control.
This is a very important progress. Take e.g. the crucial issue raised by Gustavo Forster in Multiple texts at the same time on subtitle: Now it is possible to do this: the text on the video can be copied within brackets on one line, and the transcript of what the person says can be added on another line, separated by a line break from the former.
Other case: multi-line subtitles imported together with the video from YouTube were formerly rendered (with the exception of the fortunately short-lived imposition of the disastrous 32-character limit) as wrapping single-line in Amara. Now they import correctly, including their line breaks, which can also be restored in formerly imported subtitles.
Several people had been asking for this possibility to use line breaks for almost a year now. So Amara's choice to make this possible is not just a technical, formal change: it's recognizing subtitlers' rights and competence in deciding how their work appears.
Thank you, Amara developers.