About the Measurement Input Screen Features The following calculations are available: Addition and subtraction Diagonal pipe length calculation (⊿ button) Calculation results are saved as history, so you can recall the same formula and result at any time. 🔒 Note: The addition/subtraction and ⊿ (hypotenuse) calculation features require the Pro version or feature unlock via points. If you are using the free version, please check the unlock procedure. In the free version, hi...