The following keyboard keys are reserved by the program for its own internal use and cannot be customized with shortcuts of any kind.
| Keyboard Key | Common behavior | Details and related topics |
| Backspace | Deletes the current selection. | When editing a field, it deletes the selected text or the character to the left of the cursor. |
| B | Blocks the value in a mini-dialog box. | |
| Ctrl+C | Executes the Copy command. | |
| Ctrl+F | Executes the Front View command. | |
| Ctrl+H | Executes the Highlight Dimensions command. | |
| Ctrl+N | Enables you to open a new document. | |
| Ctrl+O | Executes the Open command. | |
| Ctrl+P | Prints the active document. | The current Print Setup options are used without interaction with the user. |
| Q | Starts the Select command. | Enables you to perform a quick editing of the Work Plane. |
| Ctrl+R | Executes the Right View command. | |
| Ctrl+S | Executes the Save command. | |
| Ctrl+T | Executes the Top View command. | |
| Ctrl+V | Executes the Paste command. | |
| W | Executes the Work Plane command. | |
| Shift+W | Executes the Absolute Reference System (World) command. | |
| Ctrl+X | Executes the Cut command. | |
| Y | Toggles the display of the Profile Reference System. | Same behaviour is executed by the use of the 3D Reference system check box in the System Options - Profile category. |
| Ctrl+Y | Executes the Redo command. | |
| Ctrl+Z | Executes the Undo command. | |
| Del | Deletes the current selection. | When editing a field, it deletes the selected text or the character to the right of the cursor; when editing a model or drawing, starts the Delete command. |
| Enter | Terminates the data input and applies the command. | Overview table on how to use the keyboard |
| Esc | Aborts the command. | Overview table on how to use the keyboard |
| F1 through F12 | Various functions depending on the context. | Shortcut Function Keys |
| Shift+N | Executes the Snap to None command. | |
| Shift+R | Executes the Redraw All command. | |
| Space bar | Starts an editing session. | Starts the input on the mini-dialog with the focus enabled when a command with a selection list is active. When no command is active, it moves the focus to the command line of the I/O Window if the latter is displayed. |
| TAB, Shift+TAB, Ctrl+TAB | Moves onto the next field when entering data. | Overview table on how to use the keyboard |