Hi, JAButler.
How keyboard shortcuts, such as those you cite, work are generally defined at the application level. Command-A, i.e.
⌘-A (not Control-A) is universally defined as "Select All."
I recommend consulting the Help for a given application to determine what keyboard shortcuts it defines.
For example, in my favorite text editor,
Tex-Edit Plus, it defines the following keyboard shortcuts akin to what you describe:
• Shift-arrow extends a selection.
• Shift-option-left/right arrow extends the selection one word at a time.
• Shift-command-left/right arrow extends the selection to the beginning/end of the line.
However, in FileMaker Pro, another application I use often, one must use
Shift-
Option-Command-left/right arrow
to extend the selection to the beginning or end of the line vs "Shift-command-left/right arrow" in Tex-Edit.
General Information on Mac OS X Keyboard Shortcuts
• An official list of Mac OS X keyboard shortcuts is found in
"Mac OS X: Keyboard Shortcuts."
• An important list of keyboard shortcuts for all Mac owners is:
"Mac OS: Apple Pro Keyboard Shortcuts for Shut Down and Restart."
• If you have an Intel-based Mac, see also
"Startup key combinations for Intel-based Macs.".
• A popular list of Mac keyboard shortcuts is
Dave's Picks Mac Keys.
• Don't forget that Mac OS X's Help Viewer lists most of the keyboard shortcuts available. Just search for
keyboard shortcuts in Help Viewer.
Good luck!
😉 Dr. Smoke
Author:
Troubleshooting Mac® OS X