Hi Guys, help needed 
When I hit Ctrl + Left Arrow, I want to snap the window to the left of the screen and make its size 1/3 of the screen. If the hit Ctrl + Left Arrow the second time, I want to make the size 50% of the screen and if I hit Ctrl + Left Arrow the third time, I want to make it 66%.
Can anyone help please help me to understand how can I do this? I actually want to replace spectacle which is a window snapping app and this is the functionality it offers.
Thanks