How to Use the Notch Tool in CLO3D Video Step-by-step with Rose Why do we need to know about the notch tool, and how to use it? As pattern makers, we use notches to identify a certain piece of garments that need to be sewn together. See the links:  How to use the notch tool , and  the notch tool property . How to Use the Notch Tool Step-by-step Option 1: Using the Notch Tool by Left-clicking Here’s how to use the notch tool in  CLO3D . The first way to use the notch tool. So, I’m going to go to this 2d toolbar, and then click on this notch tool. I’m going to hover the mouse over this line, then this red dot appears. I’m going to click one to place the notch.  Option 2: Using the Notch Tool by Right-clicking. The next option is to right-click on the line. While the notch tool is still active, I’m going to hover my mouse over this line. Then, the red dot appears. Next, I’m going to right-click. This will bring up a window that allows me to either select a specific length of the notch or