I am using PS CC 2015 on my windows 10 machine. When I press CTRL some guidelines will appear indicating the distance between the selected layer and the layer which the mouse is pointing to, as seen in the picture below.
First, is there a name for this "feature"? Secondly, on My mac I am using the same version PS CC, but I tried pressing CTRL, Command or ALT but none of them will bring up the guidelines. So does PS CC on Mac not provide this feature?