In many 3D packages you can enter basic math (add,subtract,multiply,divide) into a number field to compute a result, and this would be very handy in WM
What about scalar arithmetic? You can calculate a number and plug it into the field.
Or do you mean in the field itself? I think you’d do that with the above method.
Let me know if you need more info.
== John ==
He means in the field itself. So instead of being limited to numeric literals, fields would accept simple arithmetic expressions, evaluate them and use the result as if you had entered that literal value. Not talking about “live” expressions.