How frustrating it is to try Corel Painter when so used to Adobe Photoshop.  I try to make a customization shortcuts that try to simulate to the best I could the Photoshop shortcuts keys into Painter.

Painter X : get it here

Painter 11: get it here

Useful tip: if you want to import an older key set of the PC version of  Painter the the newest Painter, get Notepad++ (free) and convert the PKS file by going to menu>Encoding>UTF-8 and save it.