The quickest way to add a new Row is either to add a preset starter component or to use the Quick Add Element dropdown at the bottom of the plugin to insert a new blank Row layer to your email design, when your Emailify email Figma frame is selected.
This will add a brand new empty Row layer with a single Column layer inside of it, which you can start populating with content layers and customizing the styles (for example, adding a background, adjusting padding and spacing, etc) in Figma as needed.
π£ Row layers can only be added directly to an βοΈ Email frame, and can only contain one or more ποΈ Column layers inside of it.