Table A-10 documents the options for manipulating layers. You can read more about managing layers in Chapter 2, Chapter 14, and Chapter 17.
Action
Windows
Macintosh
Select layer
Ctrl+Shift-click
Cmd+Shift-click
Select and move layer
Ctrl+Shift-drag
Cmd+Shift-drag
Add or remove layer from selection
Shift-click layer
Move selected layer by 1 pixel
Arrow keys
Move selected layer by 10 pixels
Shift+Arrow keys
Resize selected layer by 1 pixel
Ctrl+Arrow keys
Opt+Arrow keys
Cmd+Arrow keys
Resize selected layer by 10 pixels
Ctrl+Shift+Arrow keys
Opt+Shift+Arrow keys
Cmd+Shift+Arrow keys
Align selected layers to the Top/Bottom/Left/Right of the last selected layer
Ctrl+Up/Down/Left/Right Arrow
Cmd+Up/Down/Left/Right Arrow
Make selected layers the same width
Ctrl+Shift+[
Cmd+Shift+[
Make selected layers the same height
Ctrl+Shift+]
Cmd+Shift+]
Modify Convert Tables to Layers
Alt+M, C, T
N/A
Modify Convert Layers to Table
Alt+M, C, L
Toggle nesting preference on or off when creating a layer
Ctrl-drag
Cmd-drag
Toggle the display of the grid
Ctrl+Alt+Shift+G
Cmd+Opt+Shift+G
Snap To grid
Ctrl+Alt+G
Cmd+Opt+G
Add keyframe to timeline
F6
Remove keyframe from timeline
Shift+F6