Unfortunately, the Surface pen isn't supported on Laptop 7. **What to try if your Surface Pen doesn't ink - Microsoft Support
(I don't know if a CAPACITIVE stylus might work and provide limited functionality. https://www.amazon.com/BoxWave-Stylus-Compatible-Microsoft-Surface/dp/B0DD5TR2N9 claims to work with Laptop 7, but there are no reviews from other customers). If you do try this, please let us know if it works or not.)