Adobe Photoshop 0.63 (on System 7)
Adobe Photoshop 1.0.7 (on System 7)

These applications don’t have this feature.

Adobe Photoshop 2.5 LE (on Windows 3.1)

This application doesn’t have this feature.

Adobe Photoshop 3.0.4 (on Windows 98)

Layers palette options in Adobe Photoshop 3.0.4

Adobe Photoshop 4.0 (on Windows 98)

Layers palette options in Adobe Photoshop 4.0

Adobe Photoshop 5.0 (on Windows 98)
Adobe Photoshop 5.5 (on Windows 98)

Layers palette options in Adobe Photoshop 5.0

Adobe Photoshop 6.0 (on Windows 2000)

Layers palette options in Adobe Photoshop 6.0

Adobe Photoshop 7.0 (on Windows 2000)

Layers palette options in Adobe Photoshop 7.0

Adobe Photoshop CS (on Windows XP)

Layers palette options in Adobe Photoshop CS

Adobe Photoshop CS2 (on Windows XP)

Layers palette options in Adobe Photoshop CS2

Adobe Photoshop CS2 (on Mac OS X 10.4 Tiger)

Layers palette options in Adobe Photoshop CS2