Add to a SelectionMouse: Shift + drag This shortcut is the same when using any of the selection tools: Rectangular Marquee, Elliptical Marquee, Magic Wand, or any of the Lasso tools.
Add a Square or Circle to Active SelectionUsing the Rectangular or Elliptical Marquee tool, hold down Shift, click and start to drag, then release the Shift key, and press it down again. To add a square or circle to an active selection from the center of where you start clicking, start by holding down the Shift key, click and begin to drag, then release the Shift key, and press down the Shift and (Option) [Alt] keys.
Subtract from a SelectionMac: Option + drag Win: Alt + drag This shortcut is the same when using any of the selection tools: Rectangular Marquee, Elliptical Marquee, Magic Wand, or any of the Lasso tools.
Subtract a Square or Circle from Active SelectionUsing the Rectangular or Elliptical Marquee tool, hold down (Option) [Alt], click and start to drag, then press the Shift key.
Intersect with a SelectionMac: Option + Shift + drag Win: Alt + Shift + drag This shortcut is the same when using any of the selection tools: Rectangular Marquee, Elliptical Marquee, or any of the Lasso tools. To use this shortcut with the Magic Wand tool, click instead of drag.
Duplicate a SelectionMac: Option + drag with Move tool Win: Alt + drag with Move tool |