How can i design for 1920x1080 in unity?

Hello

i want to make a 2D game in unity for pc. So i will make everything base on a high resolution (1920x1080) then i will scale down for lower resolutions.

the problem is, when i want to make the game for 1920x1080 but all i can see is lets say 960x540, how can i check if all the gui elements are in their correct positions without building the game?

these are the resolution i got when maximizing/minimizing the “Game” menu (i want 1920x1080)

            Debug.Log (Screen.height+"  x  "+Screen.width);
 
 
i got  786 x  442 before maximizing 
then i got  1616 x  909 after maximizing

Go to the top left of the game window and open the dropdown menu. Here you can select 16:9 or if you want to select the resolution you can click the + button and enter 1920 and 1080.