Hi All, I had the same problem, but I just found the answer in the Photoshop help reference book of Adobe: Windows: Alt + pushing right mouse button + moving the mouse to the right / left (over the image) = brush size Alt + pushing right mouse button + moving the mouse up / down (over the image) = brush hardness I am using CC 2015 with Windows. And it works! Just tried it! According to the manual, for MAC it should be something like Control + Option + clicking on the image + moving the mouse right/left or up/down. (I can not test it, since I don't have a MAC...) Have a nice day!
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