What are benefits of trailing stop?

Trailing stop is the option that we use to secure our profits and minimize the loss in our trading, whenever we open medium term order then we can use trailing stop to secure our order, you can find this option by right click on your existing order as you can see the picture below:

Here you can see the trailing stop and the options available with trailing stop, actually we set the points or pips to secure our opened order for sudden market bounce back. for example, if you use 15 points, then you will see that when market move more than 15 points in your order favor then you see a red line just after your order, this is actually a stop loss, and if the market will reverse then your order will close on that limit. Sometimes it cause you profits and sometimes it secure your order to go to negative and secure your capital with sudden fluctuation. Now a question arise, if it is stop loss then why not set stop loss manually, what is the need of trailing stop? So, I would like to tell you that when you set 15 or any points of trailing stop then after those pips you will see red line, and if the market continues its movement in your favor then the red line or stop loss will automatically move with the difference of 15 or the points you set. if you set more than 15, like 25 or 35, then you will see that if the market move between 34 points nothing will happen, and after 35 points when the market move one pip, the trail stop will move one pip. you can say it is an emergency break. But it is for medium or long term tradings, not suitable for short or scalping.