Adobe

Adobe Photoshop CS5 Keyboard Shortcuts Selecting Draw Marquee from Center Alt-Marquee Add to a Selection Shift Subtract from a Selection Alt Intersection with a Selection Shift-Alt Make Copy of Selection w/Move tool Alt-Drag Selection Make Copy...

Adobe Photoshop CC 2017 All keyboard shortcuts Selecting Draw marquee selection from center Alt–drag selection Add to a selection Shift Subtract from a selection Alt Intersect with a selection Shift–Alt Make copy of selection...