Menu items show the authoritative shortcut for the installed version. A shortcut can be unavailable when no model window is active or the command does not apply to the current selection.
Project and window
Action
Shortcut
New Model
Command-N
Open
Command-O
Save
Command-S
Save As
Command-Shift-S
Print
Command-P
Print Preview
Command-Shift-P
Close Window
Command-W
Quit
Command-Q
Edit and find
Action
Shortcut
Undo
Command-Z
Redo
Command-Y
Cut
Command-X
Copy
Command-C
Paste
Command-V
Delete selection
Delete
Select All
Command-A
Find Variable
Command-F
Replace Variable
Command-Option-F
Find Next Variable
Command-G
In Find Variables, Return selects Find Next. Dialogs commonly use Return for the primary action and Escape to cancel.