In Assemble Document, you can now create an interactive preview of the document you are working in, by holding the Shift-button and clicking in the toolbar. The resulting document is actually a PDF under-the-hood, and will therefore be 100% identical to the PDF you would normally download from the server. This will significantly reduce the amount of trial-and-error involved in fine-tuning document layouts.
Updated core functions
In each of the styles editors, there are now buttons that allow you to copy the style being edited to the clipboard, or paste a previously copied style from the clipboard.
The base Styles editor now shows an interactive preview.
The page-settings Styles editor also shows an interactive preview (generated under-the-hood through a PDF).