Selecting and moving objects

Result	Action
Repositions marquee while selecting‡	Any marquee tool (except single column and single row) + spacebar + drag
Adds to or subtracts from selection	Any selection tool + or + drag
Intersects a selection	Any selection tool + + + drag
Constrains marquee to square or circle (if no other selections are active)‡	+ drag
Draws marquee from center (if no other selections are active)‡	+ drag
Constrains shape and draws marquee from center ‡	+ + drag
	(except when , or any pen tool*, slice, path tool*, shape tool*, rectangle image map§, circle image map§, or polygon image map§ is selected)
Switches from to *	+ drag
Switches from to *	+ click
Moves copy of selection	+ + drag selection‡
Moves selection area 1 pixel	Any selection + †
Moves selection 1 pixel	+ †‡
Moves layer 1 pixel when nothing selected on layer	+ †
Decreases or increases detection width*	+ [ or ]
Accepts cropping or exits cropping	+ Return or Esc
Makes protractor *	+ + drag end point
Snaps guide to ruler ticks	+ drag guide
Toggles guide orientation	+ drag guide

†Hold down to move 10 pixels

‡Applies to shape tools

*Not in ImageReady

§ ImageReady only

Command Shift Option Key