- On the main menu, choose .
- Press Ctrl+SCtrl+SCtrl+SCtrl+SCtrl+X, Ctrl+SCtrl+SCtrl+S or Ctrl+Shift+SCtrl+SMeta SMeta SMeta S.
- Open Settings dialog box, expand the Editor node, and click Editor Tabs.
- In the Editor Tabs page, select the Mark modified tab with asterisk check box.
2.0+
- In the IDE Settings section of the Settings dialog box, click General.
- Select the Use "safe write" check box.
If this check box is selected, modified file will be first saved as a temporary file. If the save operation is completed successfully, the temporary file will renamed, and the original file will be deleted.

