How to make Object snap to grid when in the 2D mode

In 3D mode, we can snap a object to grid by holding Ctrl key and left-clicking the object to move.
But it doesn't work in 2D mode. Is there anyway to do the "snapping trick" in 2D?
My Editor is Unity 5.35, OS is windows7.

 

You can still snap to a grid using CTRL. Have you tried messing with the editor's snapping settings? It may be that a single block or tile doesn't represent 1x1 unit of space. If that is the case you will need to change your snapping settings to manage that difference in size (relative to 1 unit).

Check out this rad video: https://unity3d.com/learn/tutorials/topics/tips/snapping