The second shell is a light program that does not need to be installed that aims to make Windows even more dynamic.
Press Windows with the mouse on any part of the window and click on the left mouse button. If you decide to click on the right button you will be able to resize the window.
By the way, we'll enjoy two hotkeys to stretch vertically or horizontally to vertical or horizontal windows. This is particularly useful if you read the large documents.
The second shell is a useful application that adds some functions to Windows that can be really helpful to save time.