2. This adds a "SmartDraw Diagram" item to the right hand side of any Card under Power-Ups. Clicking on "SmartDraw Diagram" will offer a choice among some common diagram type templates include flowcharts, org charts, mind maps, and floor plans. Selecting one of these will open a blank template of the selected type.
If you don't see what you're looking for, click on "More" and you'll be able to choose from over 4,500 templates including class diagrams, workflows, and more.