This video explains how to create rectangular shapes onto SysML diagrams within Cameo. It shows how to edit these shapes' color and line style and provides a tutorial on aligning the rectangles with other rectangles using the align tool.
Note: These rectangles are for formatting only on a diagram. They do not show up as elements within the containment tree.
Note: You can also edit the line thickness by going to Line Width and setting the value to an integer greater than 1.