The Paragraph section allows for the most customization available as it is an open section for you to input your own custom information.
Editing & Formatting:
As the Paragraph section is simply an open section into which you can add a variety of elements, there are no pre-created layouts available.
Instead, you are presented with the following panel.
Add and modify text and text styles
Add video links
Add images (simply copy the image & paste it directly into the dialog box)
Add simple variables using the quick add tool.
Add a drawing to the paragraph
Add advanced proposal variables (see: Advanced Proposal Settings)
If you want to use the Add Variables or Add Drawing quick-add tools, you'll find them above the rich-text editor.