On the Advanced tab, you can set up background behavior and additional features in CET.

Advanced

• Use Windows open/save dialogs (not recommended): You can choose to use the Windows open/save dialogs instead of CET’s own.
  
  Selecting this option may cause some functionality loss, e.g. the ability to view the drawings as thumbnails, and is therefore not recommended.
• Enable sounds: Play sounds integrated in CET while placing and adjusting objects in CET.

File locations

• Save location for new drawings: Specify the save locations for new drawings as well as exported PDF or CAD files from CET. Clicking the link symbol will set the location to “Same as drawing”.
• Location for CET Documents folder: Specify the preferred location for your CET Documents folder. Default location is the Documents folder on your local computer.

Cleaning

• Rebuild language database: Click this option if you have a problem with mixed languages on buttons or in dialog box, or if you see $, %, or other symbols in texts.
• Remove old backup files: Removes auto-backup files and auto-save files to allow more room on your computer.