Show the details of the Insert Function → Function Arguments window in IntelliSense
Typing functions directly into cells is generally faster than inserting functions using the Insert Function window. However, the Function Arguments window, which appears after you select a function in the Insert Function window, has some details that are not available through IntelliSense to those typing functions directly into the cells. These details include the description and the data type of each argument and the volatility of the return value.
For the best of both worlds, please show the description and the data type of each argument in IntelliSense. Since IntelliSense does not evaluate arguments like the Function Arguments window does, only functions whose result is always volatile should be marked as volatile.