SmartDraw's automation features make creating a data flow diagram effortless, but you can forego these automation features if you want the look and feel of manual connections. As before, start by adding two shapes to you diagram. Next, connect the two shapes by clicking on the Line Tool in the Home ribbon. In the drop down for the Line Tool, you can choose what type of line you'd like to use, for example a segmented or curved line.
Once you have chosen your line, you'll notice that your cursor has turned into a pencil. Touch your pencil to the edge of one shape. You should see a series of black connection points light up. Now drag your line to the edge of the next shape. As you near the edge, when you see your cursor turn into an Anchor symbol, you can let go, the line is ready to connect.