The following table outlines the most commonly used shortcut keys:
What do you want to do?  | Shortcut keys  | |
Windows  | OS X  | |
Open the Find dialog  | Ctrl+Shift+F  | Cmd+Shift+F  | 
Open the Quick Find dialog  | Ctrl+Alt+F  | Cmd+Alt+F  | 
Open the Find and Replace dialog  | Ctrl+R  | Cmd+R  | 
Remove both symbols from an active   | Ctrl+D  | Cmd+D  | 
Remove only a symbol from an active   | Delete  | Del  | 
Select all shapes on an active diagram  | Ctrl+A  | Cmd+A  | 
Select an element in the Containment tree Switch from List to Tree view in the Select Element dialog  | Alt+B  | Alt+B  | 
| Zoom in/out Model Browser | Ctrl+Mouse scroll wheel Ctrl+Numpad +/-  | Cmd+Mouse scroll wheel Cmd+Numpad +/-  | 
Add more symbols to selection  | Shift+Left mouse button  | Shift+Left mouse button  | 
Select elements of the same type  | Alt+Left mouse button  | Alt+Left mouse button  | 
Open a list of possible elements to   | Ctrl+Spacebar  | Ctrl+Spacebar  | 
Add a new line in the compartment of   | Shift+Enter  | Shift+Enter  | 
Open element's Specification window  | Enter  | Enter  | 
Open element's Symbol Properties dialog  | Alt+Enter  | Alt+Enter  | 
Open the Report Wizard  | Ctrl+Shift+G  | Cmd+Shift+G  | 
See the list of recently opened diagrams  | F12  | –  | 
Cut a selected item  | Ctrl+X  | Cmd+X  | 
Copy a shape or text  | Ctrl+C  | Cmd+C  | 
Copy a shape  | Drag the shape to the empty place   | –  | 
Paste  | Ctrl+V  | Cmd+V  | 
Paste with New Element  | Ctrl+E  | Cmd+E  | 
Save  | Ctrl+S  | Cmd+S  | 
Commit changes to the server  | Ctrl+K  | Cmd+K  | 
Undo  | Ctrl+Z  | Cmd+Z  | 
Redo  | Ctrl+Y  | Cmd+Y  | 
Ctrl+P  | Cmd+P  | |
Assign a shortcut key to print a report  | Alt+ number 1 to 9  | Alt+ number 1 to 9  | 
| Turn on the Full Screen mode | F11 | – | 
| Open a recently closed diagram | Ctrl+Shift+T | – | 
| Paste a symbol style | Ctrl+Shift+V | Cmd+Shift+V | 
| Reverse path direction | Draw the path while holding down Alt | Draw the path while holding down Alt | 
| Reorder elements/properties in a list, tree, and Specification window | Ctrl+Up Ctrl+Down  | Alt+Up Alt+Down  | 
| Select a previous or next result in a tree | Shift+F3 F3  | Shift+F3 F3  |