SharePoint: Flexible Section Authoring Improvements

We've enhanced Flexible Sections in SharePoint Pages to make page layout creation more intuitive and predictable. Authors can now use visual column layout guides that mirror familiar sections, keep gridlines and layout guides visible while editing, and convert existing sections into Flexible Sections with a single click while preserving content placement. These improvements help authors create richer page designs with greater confidence and consistency across desktop, mobile, and email experiences.