82 ChessBase 13
Double clicking on a text entry opens a game list with the games that have this text description. Typical examples are " Mate in 3 " or the difficulty level of training examples.
The new index is excellent for the easy classification and access of games which might be very difficult to filter with other options.
Tip: In the dialog there is a small question mark next to the pull down menu for the language selection. This makes it easy to be consistent in the way you describe the classifications.
Clicking on the question mark opens the dialog " Game Title ".
ChessBase 2014