Selection Tools

Command	Mac OS	Windows
Rectangle, Oval, and Lasso Selection Tools
Constrain to Square or Circle	Shift + click	Shift + click
Add to Selection	Shift	Shift
Subtract from Selection	Option	Alt
Magic Wand
Add Color to Selection	Shift + click	Shift + click
Add Range of Colors to Selection	Shift + drag	Shift + drag
Remove Color from Selection	Option + click	Alt + click
Remove Range of Colors from Selection	Option + drag	Alt + drag