In this dialog box you can specify key fields that will be used to compare items.
|List items search keys||This group contains a list of key fields and the buttons for managing this list.|
|Add||Click the button to add a new key field to the list. The Add Search Key dialog box will open.|
|Edit||Select a key field and click this button to edit the selected item. The Edit Search Key dialog box will open.|
|Delete||Select one or several key fields and click this button to delete the selected key fields from the list.|