The Style Comparison layout, when used in a Columns arrangement, now lets you choose whether each column’s content can continue/overflow onto additional pages. Previously column content was limited to a single page—and that’s typically what you want when comparing a paragraph in multiple styles. But sometimes you want to see every character (or every line) of the text content—like for a character set, or spacing strings (below).
The new Content Overflow design attribute gives you the option.