Hello,
The MARKET PENDING button will toggle a yellow line on screen while the calculator is on. That yellow line is the entry price for your pending order. You do not have to specify what type of order it will be (buy stop ,sell limit etc) because the software will automatically understand that based on your levels.
Here is a video showing more about it
https://www.youtube.com/watch?v=iZk91qmVA3Y
