Hi everyone!
Touchpad support is hot off the press 
Get the most out of Shapr3D by choosing the input tools that work best for you — pen, mouse, or touchpad. For more details and touchpad gestures, take a look at the Manual.
Image from Microsoft
On another note, we looked under the hood and did some fine-tuning:
- Fixed: We ironed out the kinks in 2D Drawings, so adding geometries will be easier. For instance, the app won’t prevent you from adding center marks from the adaptive menu.
- Fixed: The Sweep tool sometimes stalled when you activate it from the Tools menu, so we put that in order.
- Fixed: We double-checked our code so it’s guaranteed that your work is always saved. Even though data loss rarely happens, we like to be extra safe. You can take a breath now!