While recently writing a quote-in-a-quote, I went to change my quotation style from double-quotes to single quotes. To my horror, the old, venerable "Quotes Layout" dialog was gone, replaced by a document-wide setting.
This is a Misfeature in most European languages. In English, German, and (I think) French, it is standard style to switch from double-quotes to single-quotes when you have a quote-in-a-quote. For example: My mother once told me, ``If a stranger tells you, `Come with me and I will give you candy,' run home right away!'' Quoting phrases within a sentence is not uncommon. If you're quoting someone else, you'll likely run into a quote-in-a-quote. Thanks to somebody's new "Feature," LyX can no longer handle this situation. This is a problem. -- John Weiss